Question

f(x)=(e^x)*(5x^3-5x^2+2x)*(tan(x))
d/dx f(x)=?

Answer 1

looks like a product rule problem to me yes?

Answer 2

\[(fgh)'=f'gh+fg'h+fgh'\]

Answer 3

so put
\[f(x)=e^x,f'(x)=e^x\]
\[g(x)=5x^3-5x^2+2x,g'(x)=15x^2-10x+2\]
\[h(x)=\tan(x),h'(x)=\sec^2(x)\] and go to town. clear now or should i finish?

Answer 4

thanks you

Answer 5

any idea now, of what the derivative of ln (x) is??

Answer 6

yes it is
\[\frac{1}{x}\]