Derivasjon 3mx
Lagt inn: 26/04-2007 17:23
takk!
a) [tex]f^{,}(x) = (5x tan x)^{,} =5 tanx + 5x \cdot \frac{1}{cos^2 x} = \underline{\underline{5 tanx + \frac{5x}{cos^2 x}}} [/tex]
b) [tex]g^{,}(x) =( (x+cos x)^3)^{,} = 3(x+cos x)^{3-1} \cdot (x + cos x)^{,} = \underline{\underline{3(x + cos x)^2 (1 - sin x)}}[/tex]