Help! How would I go about answering this?

Question

A. Let f(r)=4√r+5³√r

What would be f’(r), f’(1) and f”(1)?

5³√r *

the 3 is on the top left corner within the square root, could not find a way to input it any better.

Answer 1

f(r) = 4r^1/2 + 5r^1/3

Use the Power Rule