y=根号2sin(2x-π)cos【2(x+π)】化简为Asin(wx+y)的形式.

y=根号2(cos^2x-sin^2x)+2根号2sinxcosx化简 函数y=根号3 cos²x+sin x cos x-根号3/2的周期是? 已知Sin x+Sin y=1/2,Cos x+Cos y=根号3/3,求S求Sin(x-y)/2 y=(sin x + COS x)^2 方程x^2/(sin根号2-sin根号3)+y^2/(cos根号2-cos根号3)=1表示的曲线是 y=2cos x (sin x+cos x) y=根号2sin(2x-π)cos【2(x+π)】化简为Asin(wx+y)的形式. 已知cos^2x-cos^2y=根号3/2,则sin(x+y）·sin(x-y)的值 sin(x+y)sin(x-y)=k,求cos^2x-cos^2y y=根号2sin2x变换到sin^2x+sin2x+2cos^2x y=sin'2x+根号3sinxcosx+2cos'2x求值域和周期 y=sin^2x-根号3sinxcosx-cos^2x化简 函数y=根号3sin(x/2)-cos(x/2)的取值范围 求y=cos²x+2根号3sinxcosx-sin²x的最大值最小值. 求y=cos²x+2根号3sinxcosx-sin²x的最大值、最小值. 求y=cos²x+2根号3sinxcosx-sin²x的最大值最小值. Y=sin(x+15度)+根号2cos(x+60度）最大值RT, 函数Y=（根号3乘以sin（x）除以（2-cos(x))