Potenser
Posted: 25/10-2006 17:46
Hva skal jeg gjøre...?
a[sup]1/3[/sup] * (a[sup]2/3[/sup] * a[sup]4/3[/sup]) [sup]-1/2[/sup]
a[sup]1/3[/sup] * (a[sup]2/3[/sup] * a[sup]4/3[/sup]) [sup]-1/2[/sup]
rosin wrote:Hva skal jeg gjøre...?
a[sup]1/3[/sup] * (a[sup]2/3[/sup] * a[sup]4/3[/sup]) [sup]-1/2[/sup]
[tex]a^{1/3}*(a^{2/3}*a^{4/3})^{-1/2}[/tex][tex]\;=\;[/tex][tex]a^{1/3}*a^{-1/3}*a^{-2/3}[/tex][tex]\;=\;[/tex][tex]a^{-2/3}[/tex]
[tex]\;=\;{1\over a^{2/3}}[/tex]