【正文】
()2g x f x ?????????且 lg g(x)> 0,求 g(x)的單調(diào)區(qū)間. 參考答案 1答案: B 2答案: C 3答案: C 4答案: A 5答案: A 6答案: B 7答案: - 2 8答案: (1) 23?< k< 2π (2)① 2 ,3 1 8nx x n????? ? ?????Z時, f(x)max= 4; ② ,139n????????? (n∈ Z) 9答案: (1) ( ) 2 s in 2 + 16f x x ????????? (2) 3? 10答案: (1)a= 2, b=- 5 (2)單調(diào)增區(qū)間為 ,6kk ??????? ???, k∈ Z 單調(diào)減區(qū)間為 ,63kk????????????, k∈ Z