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Mathematics
Problem
State the condition on the real parameter
a
a
a
for which the linear function
f
(
x
)
=
a
x
+
b
(
a
,
b
∈
R
)
f(x)=ax+b\;(a,b\in\mathbb R)
f
(
x
)
=
a
x
+
b
(
a
,
b
∈
R
)
possesses an inverse function.
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