Posted by Yousef on .
Find the first derivative for the following functions
1) f(x) = sin(cos^2x) cos(sin^3x)
2) f(x) = ( tan 2x  tan x ) / ( 1 + tan x tan 2x )
3) f(x) = sin { tan ( sqrt x^3 + 6 ) }
4) f(x) = {sec^2(100x)  tan^2(100x)} / x

Maths Calculus Derivatives 
Steve,
Just gonna dump some problems on us?
The solution to your previous posting should help some.
Hints:
1) use product rule, chain rule
2) use quotient rule, chain rule
3) use chain rule, chain rule, chain rule
4) use quotient rule, chain rule