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

If `f(x)=log.(1+x)/(1-x)` then `f((x_(1)+x_(2))/(1+x_(1)x_(2)))=`

A

0

B

`f(x_(1))+f(x_(2))`

C

`f(x_(1))f(x_(2))`

D

`f(x_(1), x_(2))`

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