Question

8. If f (x) = log {(1 + x)/ (1 - x)}, then f(x) + f(y)
is:
(a) f(x + y)
(b) f{(x + y)/(1 + xy)}
(c) (x + y)f{1/(1 + xy)}
(d) f(x) + f(y)/(1 + xy)
in ronresented as:

Answer 1

Answer:

a is your answer.

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