f(x) = √3sin²x + sinx cosx=√3 (1 - cos2x)/2 +1/2sin2x=√3/2-√3/2cos2x +1/2sin2x=√3/2- sinπ/3 cos2x + cosπ/3 sin2x= √3/2 + sin(2x-π/3)
f(2Pai/3)=根号3/2+sinPai/3=根号3
最大值=根号3/2+1