Alpha for Composite Function fof=x (Jee Mains) | ExamDuo
Ask Doubts
Log in
Functions
Medium
Alpha for Composite Function fof=x
Let
f
:
R
−
{
α
6
}
→
R
be defined by
f
(
x
)
=
5
x
+
3
6
x
−
α
.
Then the value of
α
for which
(
f
o
f
)
(
x
)
=
x
, for all
x
∈
R
−
{
α
6
}
, is
Ask about this question
SELECT ONE OPTION
A
No such
α
exists
B
5
C
8
D
6
Check