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(本小题满分12分) 设函数,已知是奇函数. (1)求b、c的值; (2)求的单...

(本小题满分12分)

设函数6ec8aac122bd4f6e,已知6ec8aac122bd4f6e是奇函数.

(1)求b、c的值;

(2)求6ec8aac122bd4f6e的单调区间与极值.

 

【解析】 (1) ∵ ······································································ 1分 ∴ ················································ 3分 ∵ 是奇函数       ∴ 恒成立 即 ∴     ∴ ············································································ 7分 (2) ∵ ∴ 由 由 ∴ 的递增区间为······················································ 11分 的递减区间为 ············································································· 13分 【解析】略
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