已知函数f(x)=1/2sinx+√3/2cosx

问题描述:

已知函数f(x)=1/2sinx+√3/2cosx

f(x)=sin(x+π/3)

=sin(x+π/3)

f(x)=(1/2)sinx+√3/2cosx
=sinxcos60°+cosxsin60°
=sin(x+60°)