求满足sin(x+π/4)大于等于√2/2的x的取值范围

问题描述:

求满足sin(x+π/4)大于等于√2/2的x的取值范围

  2kπ+π/4  2kπ  x的取值范围是[2kπ,2kπ+ π/2](k∈z)