[tex]20*0.88^x=14[/tex]
Hvordan finner jeg x i en funksjon som denne?
Finne en x i en modell
Moderatorer: Aleks855, Gustav, Nebuchadnezzar, Janhaa, DennisChristensen, Emilga
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Dolandyret
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- Registrert: 04/10-2015 22:21
[tex]20*0.88^x=14[/tex]GaBengIVGS skrev:[tex]20*0.88^x=14[/tex]
Hvordan finner jeg x i en funksjon som denne?
[tex]0.88^x=\frac{14}{20}[/tex]
[tex]ln{0.88^x}=ln\frac{14}{20}[/tex]
[tex]x*ln{0.88}=ln\frac{14}{20}[/tex]
[tex]x=\frac{ln\frac{14}{20}}{ln{0.88}}[/tex]
"I want to die peacefully in my sleep like my grandfather, not screaming in terror like his passengers."
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Dolandyret
- Lagrange
- Innlegg: 1264
- Registrert: 04/10-2015 22:21
"I want to die peacefully in my sleep like my grandfather, not screaming in terror like his passengers."