Question

If f(×)= (sinx+1) / e^x+2, then f'(x) equals

Answer 1

The derivative is
`(\cos x - \sin x-1)/(e^x)`

Explanation:

`((\sin x+1)/(e^x)+2)'=(e^x\cos x-e^x(\sin x +1))/(e^(2x))=(\cos x - \sin x-1)/(e^x)`