If f(x) = Log [(1 + x)/(1-x), then f (2x )/(1 + x²) is equal to

1.	If f(x) = Log [(1 + x)/(1-x), then f (2x )/(1 + x²) is equal to
A.	{f(x)}²
B.	{f(x)}³
C.	2 f (x)
D.	3 f(x)
Answer» D. 3 f(x)

Discussion

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