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Let f(x)=(x^(2)-x)/(x^(2)+2x),x ne 0,-2....

Let `f(x)=(x^(2)-x)/(x^(2)+2x),x ne 0,-2`. Then `(d)/(dx)(f^(-1)(x))` (wherever defined) is equal to

A

`(-1)/((1-x)^(2))`

B

`(3)/((1-x)^(2))`

C

`(1)/((1-x)^(2))`

D

`(-3)/((1-x)^(2))`

Text Solution

Verified by Experts

The correct Answer is:
B
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