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If f(x)=(x-1)/(x+1) then f(2x) is equal ...

If `f(x)=(x-1)/(x+1)` then `f(2x)` is equal to

A

`(f(x)+1)/(f(x)+3)`

B

`(3f(x)+1)/(f(x)+3)`

C

`(f(x)+3)/(f(x)+1)`

D

`(f(x)+3)/(3f(x)+1)`

Text Solution

Verified by Experts

The correct Answer is:
B
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