" If "f(x)=log((1+x)/(1-x))," then "f((2x)/(1+x))" is equal to "

If f(x)=log((1+x)/(1-x)) , then f((2x)/(1+x^2)) equal to:

If f(x) = log ((1+x)/(1-x)) , then f((2x)/(1+x^(2))) is equal to

If f(x)=log((1+x)/(1-x)) , "then f "((2x)/(1+x^(2))) is equal to

If f(x) = log ((1+x)/(1-x)) , then f((2x)/(1+x^(2))) is equal to

If f(x)=log((1+x)/(1-x)) and then f((2x)/(1+x^(2))) is equal to {f(x)}^(2) (b) {f(x)}^(3)(c)2f(x)(d)3f(x)

if f(x)=log_(2)((1-x)/(1+x)) then f((2x)/(1+x^(2))) is equal to (A) f(x) (B) 2f(x) (C) -2f(x) (D) (f(x))^(2)

If f(x) = log [(1+x)/(1-x)] then f [(2x)/(1+x^2)] is equal to