Composite Function Inverse Existence (Jee Mains) | ExamDuo
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Functions
Medium
Composite Function Inverse Existence
Consider function
f
:
A
→
B
and
g
:
B
→
C
(
A
,
B
,
C
⊆
R
)
such that (gof)
−
1
exists, then:
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SELECT ONE OPTION
A
f and g both are one-one
B
f and g both are onto
C
f is one-one and g is onto
D
f is onto and g is one-one
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