y=2sin(2x-兀/3)的单调增区间
问题描述：
y=2sin(2x-兀/3)的单调增区间
答
-1/12pi+kpi
答
2kπ-π/2≤2x-π/3≤2kπ+π/2
2kπ-π/6≤2x≤2kπ+5π/6
kπ-π/12≤x≤kπ+5π/12
答
单调增区间
2x-π/3∈[2kπ-π/2,2kπ+π/2]
2x∈[2kπ-π/6,2kπ+5π/6]
x∈[kπ-π/12,kπ+5π/12]