求证sin(x+3/1π)-根号3cos(3/2π-x)=2sin(x-3/1π)=0

化简2sin^2[(π/4)+x]+根号3（sin^x-cos^x）-1 三角等式求证：cos^6x+sin^6x=1-3sin^2x+3sin^4x 2sin(2πx)cos(2πx)+根号（3）sin(2πx)=0 0 化简 1/2cos x-根号3/2sin x 根3sin x+cos x 已知函数f(x)=sin^2*x-根号3*sinπ/4*x*cosπ/4*x 已知函数f(x)=sin²ωx+根号3sinωx乘sin(ωx+π/2)+2cos²ωx,x∈R,（ x∈[π/4,π/3],f(x)=1/2sin(x-5π/12)cos(5π/12-x)+[(根号3)/2][sin(x 求化简f(x)=sin^2x+2根号3sin(x+π/4)cos(x-π/4)-cos^2x-根号3 f(x)=sin平方x+2根号3sin(x+π/4)cos(x-π/4)-cos平方x-根号3 sin(x+π/3)+2sin(x-π/3)-根号3cos(2π/3-x) 求证 tan（2π-X）sin（-2π-X）cos（6π-X）/ sin（X+3π/2)*cos（X+3π/2)=-ta 已知sin X+cos X=m,|m|小于等于根号2且|m|不等于1,求sin X^3+cos X^3,sin X^4+