y=sin(x+θ)(0

y=sin(x+θ)(0 y=sin(2x+a)(0 求y=sin x(0 y=sin(2x+a)（0 求证sin²x-sin²y=sin(x+y)sin(x-y) 点(x,y)是曲线x=-2+cosθ,y=sinθ(0 Mathematica y''+ sin(x) y=x 证明sin(x+y)sin(x-y)=sinx-siny y=sin根号x y=sinx+sin|x| 求函数的值域 y=(x-x³)/(1+2x²+x⁴) y=(1+sinθ+cosθ)/(sinθcosθ)(0 y=sin(x+1) 求y'（0） matlab 求出y=x*sin(x)在0 y=(cos^2x)/(sinxcosx-sin^2x),(0 y=1-x^2 x>=0 ,y=sin|x|/x x 一道三角恒等式证明题请证明sin(x+y)sin(x-y)=sin^2(x)-sin^2(y) 已知x∈(0,π),求函数y=√3sinθ/(1+3sin^2θ)的最大值 y=[sin^2(x)]*[sin^2(x)]求导