Let ( f(x) = (x+2)^2 -2 , x \ge -2 ) . Then, ( f^{-1}(x) ) i... | Mathematics | SolveeIt | Solveeit

Today, August 23

Question

Let $f(x) = (x+2)^2 -2 , x \ge -2$ . Then, $f^{-1}(x)$ is equal to

A

$-\sqrt{2+x} -2$

B

$\sqrt{2+x}+2$

C

$\sqrt{2+x}-2$

D

$-\sqrt{2+x}+2$

Answer

$\sqrt{2+x}-2$

Explanation

Solution

Answer (c) $\sqrt{2+x}-2$