解方程sinx+sin(60-x)=sin(60+x)

解方程 sinx+2sin(2x)=3+sin(3x) 2sinx=sin(60-x),求sinx的值 求y=sinx*sin(x+60)的最大值 解方程 sin 2x + sin x = 0 证明sin(x+y)sin(x-y)=sinx-siny 解下列方程 cos2x=cosx+sinx sin^4x-cos^4x=cosx+sinx (sinX+sinθ) .(Sinx-sinθ)=sin(x+θ).cos(x-θ)证明 方程sin^2x减2sinx=0的解集为?详解急 如何用matlab解方程1.5sinX=sin(3.1415926/3+X/3) 解方程sinx*cosx=1/4 2sin²x=1 3sin²x-sin2x-cos²x= 证明sinx+siny+sinz-sin(x+y+z)=4sin((x+y)/2)sin((x+y)/2)sin((x+ 解sinx=2sin(pai/3-x)