2kπ-π/2≤1/2x+π/3≤2kπ+π/2
2kπ-5π/6≤1/2x≤2kπ+π/6
4kπ-5π/3≤x≤4kπ+π/3,k∈Z
∵x∈[-2π,2π]
∴取k=0得 -5π/3≤x≤π/3,
k为其他值,超出范围限制
∴函数在[-2π,2π]上的单调递
增区间为[-5π/3 ,π/3]
2kπ-π/2≤1/2x+π/3≤2kπ+π/2
2kπ-5π/6≤1/2x≤2kπ+π/6
4kπ-5π/3≤x≤4kπ+π/3,k∈Z
∵x∈[-2π,2π]
∴取k=0得 -5π/3≤x≤π/3,
k为其他值,超出范围限制
∴函数在[-2π,2π]上的单调递
增区间为[-5π/3 ,π/3]