sin(x+π/3)用诱导公式化简

题目

sin(x+π/3)用诱导公式化简
如题
sin(2x+π/3)和3sin(2x+π/3)

答案

sin(x+π/3)
=sinxcosπ/3+cosxsinπ/3
=1/2sinx+√3/2cosx