f(x)=sin(2x+A)+√3*(2cos²(x+A/2)-1) =sin(2x+A)+√芹敏3cos(2x+A) =2sin(2x+A+π/3)当A+π/3=kπ时,f(x)为奇凳首册函数A=kπ-π/3由于枣宏0≤A≤πA=2π/3