Question

（本小題滿分12分）若函數(shù)在區(qū)間上的最大值為6，
（1）求常數(shù)m的值及的對(duì)稱中心;
（2）作函數(shù)關(guān)于軸的對(duì)稱圖象得函數(shù)的圖象，再把的圖象向右平移個(gè)單位得的圖象，求函數(shù)的單調(diào)遞減區(qū)間.

Answer 1

（1）；
（2）

（1）                                  1
                                                   2
                                    3
                                                         4
                                                                 5
                                              6
的對(duì)稱中心                                       8
（2），                     9
                       10
                                          11
的單調(diào)遞減區(qū)間是                        12