Published by:
CGP EDU Academic Team
Published on: August 11, 2026
Let
be defined by
. Then
is
Text Solution
Verified by ExpertsThe correct answer is:
C
Let
such that
. Then

or 
or 
i.e.,
or 
Therefore,
is one-one.
Also,
does not take all positive integral values. Hence,
is into.
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