g(x)=2sin2x-2sin(2x+π/3)怎样变成g（x）=2sin2x-2[(sin2x)*(1/2)+(cos2x)(√3/2)]

Sin2x=sin^2x 化简f(x)=sin2x-2sin^2x*sin2x g(x)=2sin2x-2sin(2x+π/3)怎样变成g（x）=2sin2x-2[(sin2x)*(1/2)+(cos2x)(√3/2)] sin2x-x 是(sin2x)-x还是sin(2x-x)? sin2x=sin(x/2) 0 证明 2sin(π+x)cos(π-x)=sin2x f(x)=sin2x+2sin(x+45°)最大值 sin2x-2sin平方x*sin2x的奇偶性和周期? sin^2x+sin2x 最小正周期 y=根号2sin2x变换到sin^2x+sin2x+2cos^2x f(x)=sin2x-2sin^2x*sin2x最小正周期等于多少? 化简：2cos2x+2sin^2 x+cos(-x)分之sin2x+sin(π-x)=___________ 化简：sin2x+sin(π-x)/2cos2x+2sin^2x+cos(-x)=? 函数f(x)=2sin(x+π/4)sin(x-π/4)+sin2x的值域 求f【x】=2sin[x+π/4]sin[x-π/4]+sin2x的最大值 sin^2x=2sinxcosx=sin2x吗? 为什么sin2x+cos2x=2sin(2x+π/4) sin2x + 2sin^2x=sinx + cosx 三角方程求解