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If f(x)=ax+b and the equation f(x)=f^(-1...

If f(x)=ax+b and the equation `f(x)=f^(-1)(x)` be satisfied by every real value of x, then

A

a=2, b=-1

B

`a=-1,b in R`

C

`a=1, b in R`

D

a=1, b=-1

Text Solution

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The correct Answer is:
B
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