题目

三角函数最大值最小值的题
f(x)=sin(2x-π/6) 在区间[-π/6,5π/6]上的最大值和最小值 分别是 1 和-1 这错了吗`?

提问时间：2021-02-19

答案

x belongs to [-pai/6,5pai/6],
so
2x-pai/6 belongs to [-pai/2,3pai/2]
draw the picture of this function
according to the picture,we can get that
f(x) belongs to [-1,1],
so
the maximum of the function is 1
the minimun of the function is -1
so
your answer is right