题目

已知函数()在时有极值,其图象在点处的切线与直线平行。 (1)求m,n的值; (2)求函数的单调区间。 ] 答案:解:(Ⅰ) ()在时有极值,其图象在点处的切线与直线平行                                22、― Why was Mr. Green out of work last week? ― He_______ a medical conference the whole week. A. will attend     B. had attended         C.  was attending           D. would attend
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