Question

I'm stuck on taking the inverse of a function of f. f(x) = square root of x2 − 4 ,x ≥ 2. So far I'm at the step where I'm supposed to take the square root of each side and it's x^2+4=y^2. How do I take a square root of X^2+4 and then what is the final f^-1 (x)=____?, ≥0

Answer 1

Where does the x≥ 2 go in the formula?

Answer 2

that is the restriction given, otherwise the inverse function will not be a function

Answer 3

Someone please help!

Answer 4

\[f(x)=\sqrt{x ^{2}}-4??\]