Question

Find
(f −1)'(a).
f(x) = 4x^3 + 4x^2 + 3x + 8, a = 8

Answer 1

By the way (f-1) is the inverse function not actually f-1

Answer 2

Ok so I set it up by switching the x's and y's. x=4y^3+4y^2+3y+8. Then I took the derivative and tried solving for y but clearly this is wrong because i get a negative number under the square root

Answer 3

Hey

Answer 4

No no you don't need to actually find the inverse function.

Answer 5

didn't notice this was closed
sorry

Answer 6

I figured it out. All good