Since g(2) = −1,
the inverse, f(−1) = 2.
Now f '(−1) = 1, so g '(2) = __
Refer to the hint in part (b)
Refer to the hint in part (b).
How to find derivative of inverse functions:
A function, f, and its inverse, g, will have reciprocal derivatives at corresponding (x, y)→(y, x) values.