Answer
(a) even
(b) odd
Work Step by Step
(a) g(-x) = {[f(-x) + f[-(-x)]}/2 = [f(-x) + f(x)]/2 = g(x) -> even
(b) h(-x) = {[f(-x) - f[-(-x)]}/2 = [f(-x) - f(x)]/2 =
= -[f(x) - f(-x)]/2 -> odd
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