https://matematikk.net/w/index.php?action=history&feed=atom&title=R1_2014_v%C3%A5r_L%C3%98SNING 2026-04-04T22:27:18Z Versjonshistorikk for denne siden på wikien MediaWiki 1.42.3 https://matematikk.net/w/index.php?title=R1_2014_v%C3%A5r_L%C3%98SNING&diff=17188&oldid=prev 2016-05-02T12:47:18Z

<p><span dir="auto"><span class="autocomment">b)</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="nb"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Eldre sideversjon</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Sideversjonen fra 2. mai 2016 kl. 12:47</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l271">Linje 271:</td> <td colspan="2" class="diff-lineno">Linje 271:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>$ lg ( \frac xn)^{<del style="font-weight: bold; text-decoration: none;">lgx</del>} = lg ( \frac xn)^n \\ <del style="font-weight: bold; text-decoration: none;">lgx</del>( <del style="font-weight: bold; text-decoration: none;">lgx </del>- lg n) = n(<del style="font-weight: bold; text-decoration: none;">lgx </del>- lg n) \\  <del style="font-weight: bold; text-decoration: none;">lgx</del>(<del style="font-weight: bold; text-decoration: none;">lgx </del>- <del style="font-weight: bold; text-decoration: none;">lgn</del>) - n(<del style="font-weight: bold; text-decoration: none;">lgx</del>-<del style="font-weight: bold; text-decoration: none;">lgn</del>)=0 \\ (<del style="font-weight: bold; text-decoration: none;">lgx </del>- n)( <del style="font-weight: bold; text-decoration: none;">lgx </del>- <del style="font-weight: bold; text-decoration: none;">lgn</del>)=0$</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>$ <ins style="font-weight: bold; text-decoration: none;">\</ins>lg ( \frac xn)^{<ins style="font-weight: bold; text-decoration: none;">\lg x</ins>} = <ins style="font-weight: bold; text-decoration: none;">\</ins>lg ( \frac xn)^n \\ <ins style="font-weight: bold; text-decoration: none;">\lg x</ins>( <ins style="font-weight: bold; text-decoration: none;">\lg x </ins>- <ins style="font-weight: bold; text-decoration: none;">\</ins>lg n) = n( <ins style="font-weight: bold; text-decoration: none;">\lg x </ins>- <ins style="font-weight: bold; text-decoration: none;">\</ins>lg n) \\  <ins style="font-weight: bold; text-decoration: none;">\lg x</ins>(<ins style="font-weight: bold; text-decoration: none;">\lg x </ins>- <ins style="font-weight: bold; text-decoration: none;">\lg n</ins>) - n(<ins style="font-weight: bold; text-decoration: none;">\lg x</ins>-<ins style="font-weight: bold; text-decoration: none;">\lg n</ins>)=0 \\ (<ins style="font-weight: bold; text-decoration: none;">\lg x </ins>- n)( <ins style="font-weight: bold; text-decoration: none;">\lg x </ins>- <ins style="font-weight: bold; text-decoration: none;">\lg n</ins>)=0$</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===c)===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===c)===</div></td></tr> </table>

Vaktmester https://matematikk.net/w/index.php?title=R1_2014_v%C3%A5r_L%C3%98SNING&diff=17176&oldid=prev 2016-04-25T08:37:38Z

<p><span dir="auto"><span class="autocomment">a)</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="nb"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Eldre sideversjon</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Sideversjonen fra 25. apr. 2016 kl. 08:37</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l72">Linje 72:</td> <td colspan="2" class="diff-lineno">Linje 72:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===a)===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===a)===</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>$f(x)= 3x^4-6x^2 = 3x^2(x^2-<del style="font-weight: bold; text-decoration: none;">3</del>) \\ f(x)=0 \\ x=0 \vee x= - \sqrt <del style="font-weight: bold; text-decoration: none;">3 </del>\vee x = \sqrt <del style="font-weight: bold; text-decoration: none;">3</del>$</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>$f(x)= 3x^4-6x^2 = 3x^2(x^2-<ins style="font-weight: bold; text-decoration: none;">2</ins>) \\ f(x)=0 \\ x=0 \vee x= - \sqrt <ins style="font-weight: bold; text-decoration: none;">2 </ins>\vee x = \sqrt <ins style="font-weight: bold; text-decoration: none;">2</ins>$</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===b)===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===b)===</div></td></tr> </table>

Administrator https://matematikk.net/w/index.php?title=R1_2014_v%C3%A5r_L%C3%98SNING&diff=17121&oldid=prev 2016-03-23T15:23:35Z

<p><span dir="auto"><span class="autocomment">d)</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="nb"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Eldre sideversjon</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Sideversjonen fra 23. mar. 2016 kl. 15:23</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l260">Linje 260:</td> <td colspan="2" class="diff-lineno">Linje 260:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===d)===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===d)===</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Tyngdens akselerasjon virker. Den er $9,81 m/s^2$, nedover, altså i y- <del style="font-weight: bold; text-decoration: none;">rettning</del>. Dersom man deriverer fartsvektoren får man en x komponent lik null og en y komponent lik - 9,8 (fordi positiv <del style="font-weight: bold; text-decoration: none;">rettning </del>er oppover og <del style="font-weight: bold; text-decoration: none;">akslerasjonen </del>er nedover.)</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Tyngdens akselerasjon virker. Den er $9,81 m/s^2$, nedover, altså i y- <ins style="font-weight: bold; text-decoration: none;">retning</ins>. Dersom man deriverer fartsvektoren får man en x komponent lik null og en y komponent lik - 9,8 (fordi positiv <ins style="font-weight: bold; text-decoration: none;">retning </ins>er oppover og <ins style="font-weight: bold; text-decoration: none;">akselerasjonen </ins>er nedover.)</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Oppgave 6==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Oppgave 6==</div></td></tr> </table>

Administrator https://matematikk.net/w/index.php?title=R1_2014_v%C3%A5r_L%C3%98SNING&diff=17120&oldid=prev 2016-03-23T15:22:25Z

<p><span dir="auto"><span class="autocomment">d)</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="nb"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Eldre sideversjon</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Sideversjonen fra 23. mar. 2016 kl. 15:22</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l260">Linje 260:</td> <td colspan="2" class="diff-lineno">Linje 260:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===d)===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===d)===</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Tyngndens akslerasjon </del>virker. Den er $9,81 m/s^2$, nedover, altså i y- rettning. Dersom man deriverer fartsvektoren får man en x komponent lik null og en y komponent lik - 9,8 (fordi positiv rettning er oppover og akslerasjonen er nedover.)</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Tyngdens akselerasjon </ins>virker. Den er $9,81 m/s^2$, nedover, altså i y- rettning. Dersom man deriverer fartsvektoren får man en x komponent lik null og en y komponent lik - 9,8 (fordi positiv rettning er oppover og akslerasjonen er nedover.)</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Oppgave 6==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Oppgave 6==</div></td></tr> </table>

Administrator https://matematikk.net/w/index.php?title=R1_2014_v%C3%A5r_L%C3%98SNING&diff=17119&oldid=prev 2016-03-23T15:21:47Z

<p><span dir="auto"><span class="autocomment">c)</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="nb"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Eldre sideversjon</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Sideversjonen fra 23. mar. 2016 kl. 15:21</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l256">Linje 256:</td> <td colspan="2" class="diff-lineno">Linje 256:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Vinkelen til farten er: $tan \alpha = \frac{3}{7,84} \\ \alpha \approx 21^{\circ}$</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Vinkelen til farten er: $tan \alpha = \frac{3}{7,84} \\ \alpha \approx 21^{\circ}$</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Farten er  8,39 m/s og har en <del style="font-weight: bold; text-decoration: none;">rettning </del>på ca 21 grader fra husveggen (loddlinjen eller vertikal akse).</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Farten er  8,39 m/s og har en <ins style="font-weight: bold; text-decoration: none;">retning </ins>på ca 21 grader fra husveggen (loddlinjen eller vertikal akse).</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===d)===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===d)===</div></td></tr> </table>

Administrator https://matematikk.net/w/index.php?title=R1_2014_v%C3%A5r_L%C3%98SNING&diff=17118&oldid=prev 2016-03-23T15:20:44Z

<p><span dir="auto"><span class="autocomment">c)</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="nb"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Eldre sideversjon</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Sideversjonen fra 23. mar. 2016 kl. 15:20</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l252">Linje 252:</td> <td colspan="2" class="diff-lineno">Linje 252:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>For tegning av fartsvektor se figur i b. Fartsvektoren er den deriverte av posisjonsvektoren. Fartsvektoren blir da [3,9.8t] = [3, 7.84].  </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>For tegning av fartsvektor se figur i b. Fartsvektoren er den deriverte av posisjonsvektoren. Fartsvektoren blir da [3,9.8t] = [3, 7.84].  </div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>For å finne banefarten bruker vi <del style="font-weight: bold; text-decoration: none;">pytagoras </del>og finner at den er $|v|=+ \sqrt{3^2+7,84^2} = 8,39 $.  </div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>For å finne banefarten bruker vi <ins style="font-weight: bold; text-decoration: none;">Pytagoras </ins>og finner at den er $|v|=+ \sqrt{3^2+7,84^2} = 8,39 $.  </div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Vinkelen til farten er: $tan \alpha = \frac{3}{7,84} \\ \alpha \approx 21^{\circ}$</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Vinkelen til farten er: $tan \alpha = \frac{3}{7,84} \\ \alpha \approx 21^{\circ}$</div></td></tr> </table>

Administrator https://matematikk.net/w/index.php?title=R1_2014_v%C3%A5r_L%C3%98SNING&diff=17117&oldid=prev 2016-03-23T15:19:45Z

<p><span dir="auto"><span class="autocomment">a)</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="nb"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Eldre sideversjon</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Sideversjonen fra 23. mar. 2016 kl. 15:19</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l242">Linje 242:</td> <td colspan="2" class="diff-lineno">Linje 242:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Ballen treffer bakken når y-koordinaten til posisjonsvektoren er null: $15-4,9t^2 =0 \\ t^2 = \frac{15}{4,9} \\t = \pm 1,75$</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Ballen treffer bakken når y-koordinaten til posisjonsvektoren er null: $15-4,9t^2 =0 \\ t^2 = \frac{15}{4,9} \\t = \pm 1,75$</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Den <del style="font-weight: bold; text-decoration: none;">trefffer </del>bakken etter 1,75 sekunder.</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Den <ins style="font-weight: bold; text-decoration: none;">treffer </ins>bakken etter 1,75 sekunder.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===b)===</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===b)===</div></td></tr> </table>

Administrator https://matematikk.net/w/index.php?title=R1_2014_v%C3%A5r_L%C3%98SNING&diff=17116&oldid=prev 2016-03-23T15:19:05Z

<p><span dir="auto"><span class="autocomment">a)</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="nb"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Eldre sideversjon</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Sideversjonen fra 23. mar. 2016 kl. 15:19</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l211">Linje 211:</td> <td colspan="2" class="diff-lineno">Linje 211:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Benevningen er desimeter, dm, i resten av oppgaven er benevninger utelatt.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Benevningen er desimeter, dm, i resten av oppgaven er benevninger utelatt.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Overflaten av boksen består av en bunn med areal $x^2$ og fire sideflater med arealet $xh$. Overflaten blir da $x^2+ 4xh$, og siden det samlede <del style="font-weight: bold; text-decoration: none;">areale </del>skal være 12 får vi:</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Overflaten av boksen består av en bunn med areal $x^2$ og fire sideflater med arealet $xh$. Overflaten blir da $x^2+ 4xh$, og siden det samlede <ins style="font-weight: bold; text-decoration: none;">arealet </ins>skal være 12 får vi:</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>$x^2+4xh=12$</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>$x^2+4xh=12$</div></td></tr> </table>

Administrator https://matematikk.net/w/index.php?title=R1_2014_v%C3%A5r_L%C3%98SNING&diff=17115&oldid=prev 2016-03-23T15:17:14Z

<p><span dir="auto"><span class="autocomment">a)</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="nb"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Eldre sideversjon</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Sideversjonen fra 23. mar. 2016 kl. 15:17</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l211">Linje 211:</td> <td colspan="2" class="diff-lineno">Linje 211:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Benevningen er desimeter, dm, i resten av oppgaven er benevninger utelatt.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Benevningen er desimeter, dm, i resten av oppgaven er benevninger utelatt.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div><del style="font-weight: bold; text-decoration: none;">Overdlaten </del>av boksen består av en bunn med areal $x^2$ og fire sideflater med arealet $xh$. Overflaten blir da $x^2+ 4xh$, og siden det samlede areale skal være 12 får vi:</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">Overflaten </ins>av boksen består av en bunn med areal $x^2$ og fire sideflater med arealet $xh$. Overflaten blir da $x^2+ 4xh$, og siden det samlede areale skal være 12 får vi:</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>$x^2+4xh=12$</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>$x^2+4xh=12$</div></td></tr> </table>

Administrator https://matematikk.net/w/index.php?title=R1_2014_v%C3%A5r_L%C3%98SNING&diff=17114&oldid=prev 2016-03-23T15:15:11Z

<p><span dir="auto"><span class="autocomment">c)</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="nb"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Eldre sideversjon</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Sideversjonen fra 23. mar. 2016 kl. 15:15</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l197">Linje 197:</td> <td colspan="2" class="diff-lineno">Linje 197:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Den deriverte til f(x), g(x) er null for x = -2 og for x = 2. Det betyr at disse er ekstremalpunkter. til f. Fra grafen ser vi at f ha et minimumspunkt for i ( -2, -7.28), og et maksimumspunkt i (2, 7.28). Tilgi meg for å ha brukt en fornuftig, men etter norsk standard feil desimalnotasjon.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Den deriverte til f(x), g(x) er null for x = -2 og for x = 2. Det betyr at disse er ekstremalpunkter. til f. Fra grafen ser vi at f ha et minimumspunkt for i ( -2, -7.28), og et maksimumspunkt i (2, 7.28). Tilgi meg for å ha brukt en fornuftig, men etter norsk standard feil desimalnotasjon.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Vendepunktene til f finner vi der den <del style="font-weight: bold; text-decoration: none;">derivertetil </del>f, g har ekstremalpunkter, x= -3,46, x= 0 og x= 3,46, noe som gir følgene vendepunkter:</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Vendepunktene til f finner vi der den <ins style="font-weight: bold; text-decoration: none;">deriverte til </ins>f, g har ekstremalpunkter, x= -3,46, x= 0 og x= 3,46, noe som gir følgene vendepunkter:</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>(-3.46, -4.46) fra hul siden ned til opp,</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>(-3.46, -4.46) fra hul siden ned til opp,</div></td></tr> </table>

Administrator