已知函数f(x)=1/2sinx+√3/2cosx
问题描述:
已知函数f(x)=1/2sinx+√3/2cosx
答
f(x)=sin(x+π/3)
答
=sin(x+π/3)
答
f(x)=(1/2)sinx+√3/2cosx
=sinxcos60°+cosxsin60°
=sin(x+60°)