摘要：判断下列函数的是否具有奇偶性: (1) f (x) = x + x3, f (x) = – x2, h (x) = x3 +1, (4) k (x) =.x[–1.2], f (x) = (x + 1) (x – 1),(偶) (6) g (x) = x (x + 1), h (x) = x +, k (x) =.(偶)

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