sin(x+派/6)=-1/2 x=
问题描述：
sin(x+派/6)=-1/2 x=
答
sin(x+π/6)=-1/2
x+π/6=-π/6+2kπ
或x+π/6=-5π/6+2kπ
解得
x=-π/3+2kπ 或x=-π+2kπ