The function defined by is | CGP Edu

Maths Functions, Limits, Continuity and Differentiability Functions Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 11, 2026

The function defined by is

A

Onto

B

Many-one

C

One-one and into

D

Many one and onto

Text Solution

Verified by Experts

The correct answer is:

Function is defined by . Let and or or . Therefore f is one-one. Let . Taking log on both sides, we get . We know that negative real numbers have no pre-image or the function is not onto and zero is not the image of any real number. Therefore function f is into.

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