Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Relations and Functions

Question:

Options:

a

b

c

d

Correct Answer:

a

Explanation:

$f:R→R$  $f(x)=x^2$

preimage of negative real numbers don't exist have to option is (NOT Surjective)

$f(1)=f(-1)=1$ (Not injective)