Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Relations and Functions

Question:

If f(x) = \[\frac{x+1}{x-1}\] then (fof)(x) is

Options:

f(x)

-f(x)

-x

x

Correct Answer:

x

Explanation:

on solving the final answer obtained is \[\frac{2x}{2}\]