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Byju's Answer
Standard XII
Mathematics
Definition of Function
If 2f x + 3...
Question
If
2
f
(
x
)
+
3.
f
(
1
2
)
=
x
2
−
1
then find f(x).
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Solution
2
f
(
x
)
+
3
f
(
1
2
)
=
x
2
−
1
p
u
t
,
x
=
1
2
f
(
1
)
+
3
f
(
1
2
)
=
0
2
f
(
1
)
=
−
3
f
(
1
2
)
f
(
1
)
=
−
3
2
f
(
1
2
)
So,
f
(
x
)
=
−
3
2
f
(
x
2
)
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Definition of Function
Standard XII Mathematics
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