f(x)=sin²x+根号3sinxcosx 化简

题目

f(x)=sin²x+根号3sinxcosx 化简

答案

f(x)=(1-cos2x)/2+√3/2*sin2x
=sin2x*cosπ/6-cos2xsinπ/6+1/2
=sin(2x-π/6)+1/2