y=sin(x-π/3)的单调减区间是什么
问题描述:
y=sin(x-π/3)的单调减区间是什么
答
y=sin(x-π/3)的单调减区间是
2kπ+3π/2>=x-π/3>=2kπ+π/2
2kπ+11π/6>=x>=2kπ+5π/6
答
sinx减区间是(2kπ+π/2,2kπ+3π/2)
所以这里是 2kπ+π/2