Question

Find f(1)' If u know that
g(1)=1 , g'(1)= -1
h(1)= -2 , h'(1) 3
​

Answer 1

Explanation:

`f(x) = g(x)h(x)`

Taking the derivative of f(x), we get

`f'(x) = g'(x)h(x) + g(x)h'(x)`

Then
`f'(1)` becomes

`f'(1) = (-1)(-2) + (1)(3) = 5`