将函数 y=sin(2x−π6) 向右平移 π12 个单位后得到y=g（x）的图象，若函数y=g（x）在区间[a，b]（b＞a）上的值域是 [−_刷题宝

题干

将函数 y=sin(2x−π

6

) 向右平移 π12

个单位后得到y=g（x）的图象，若函数y=g（x）在区间[a，b]（b＞a）上的值域是 [−

1

2

,1] ，则b﹣a的最小值m和最大值M分别为（）

A： $m = \frac{π}{6}, M = \frac{π}{3}$

B： $m = \frac{π}{3}, M = \frac{2 π}{3}$

C： $m = \frac{4 π}{3}, M = 2 π$

D： $m = \frac{2 π}{3}, M = \frac{4 π}{3}$

上一题下一题 0.0难度选择题更新时间:2019-11-19 08:26:20

答案(点此获取答案解析）

B

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