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Let f: R rarr R be given by f(x)=(x+1)^...

Let `f: R rarr R` be given by `f(x)=(x+1)^(2)-1, x ge-1` . Then `f^(-1)(x)=`

A

`-1+sqrt(x+1)`

B

`-1-sqrt(x+1)`

C

does not exist as f is not one-one

D

does not exist as f is not onto

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The correct Answer is:
A
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