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if f(x) = (x-1)/(x+1) the f(2x ) is...

if `f(x) = (x-1)/(x+1)` the f(2x ) is

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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