Question

find the derivative of : y=sin^3 x tan 4x

Answer 1

product rule and chain rule for this one. use
\[(fg)'=f'g+g'f\] with
\[f(x)=\sin^3(x),f'(x)=3\sin^2(x)\cos(x), g(x) = \tan(4s),g'(x)=4\sec^2(4x)\]