Question

Question #bd0ef

Answer 1

`z' = 5s^4 - s^2/5`

Explanation:

`z = s^5 - s^3/15`

Assuming you want the derivative of z wrt s, which seem highly likely, then you use the power rule:

`(x^n)^prime = n x^(n-1)`

here that means:

`z' = 5s^4 - 3 s^2/15`

`= 5s^4 - s^2/5`