Question

Can someone please help me with this? Let f(x) = x^3 + x + 1. Which expression

Answer 1

Answer:

Last Option

Explanation:

I'm not sure about this one so I had to google the equation real quick.

The equation for the derivative of an inverse is:

$[f^{-1}(x)]'=\frac{1}{f'(f^{-1}(x))}$

From my understanding of the format, it might look like a hard equation to understand but its pretty simple.

The inverse derivative is 1 divided by the derivative of f(x), except you plug in f⁻¹(x) into that derivative.