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Questions
UWUJSBTKZD
Target Exam
CUET
Subject
-- Mathematics - Section B1
Chapter
Relations and Functions
Question:
f:N->N is given by f(x)=x^2, where N is the set of natural numbers. then f is
Options:
Injective
Surjective
Bijective
None of the above
Correct Answer:
Injective
Explanation:
If f(x)=f(y) then x^2=y^2. Since x cannot be -y we must have x=y
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