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Standard XII
Mathematics
Question
Find the inverse function of
f
(
x
)
=
2
x
−
3
.
Open in App
Solution
Verified by Toppr
Let
y
=
f
(
x
)
=
2
x
−
3
y
=
2
x
−
3
x
=
y
+
3
2
y
=
f
(
x
)
x
=
f
−
1
(
y
)
f
−
1
(
y
)
=
y
+
3
2
Replace y by x.
f
−
1
(
x
)
=
x
+
3
2
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19
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