Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Consider functions 
and 
such that 
exists, then
A
is one-one and 
is onto B
and 
both are onto C
is onto and 
is one-one D
and 
both are one-one
Text Solution
Verified by ExpertsThe correct answer is:
A
We have, 
and 
such that 
exists.
is one-one and onto i.e., gof is bijective.
' 
' must be one-one and ' 
' must be onto.
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