Practicing Success

Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Relations and Functions

Question:

Options:

a

b

c

d

Correct Answer:

a

Explanation:

$f(x)=x^2$    $f:Z→Z$

$f(1)=f(-1)=1$   (Not injective)

for $f(x)$ = negative integers or Non integral values

⇒ x doesn't exist (Not surjective)