f(x)=sin(2x+ø）+2根号3COS^2（x+ø/2）-根号3= sin(2x+ø) + 2根号3 [1 + cos(2x+ø)]/2 - 根号3=sin(2x+ø) + 根号3cos(2x+ø) =2 sin（2x + ø +α）所以最小正周期 = 2π/2 = π...