Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Relations and Functions

Question:

If $f: R→R$ is defined by $f(x) = (4-x^2)^{\frac{1}{2}},$ then $fof(x)$ is :

Options:

$|x|$

$2|x|$

$x^2 $

0

Correct Answer:

$|x|$