y=sin(3x+2)求y'

y =(cos^2) x - sin (3^x),求y' y=sin(3x+2)求y' sinx=1/3,sin(x+y)=1,求sin（2y+x）=? siny=1/3,sin(x＋y)=1,求sin(2x＋y) (cosx)^2-(cosy)^2=1/3求sin(x+y)*sin(x-y). Sin x-sin y=2/3 cos x-cos y=1/2 求cos(x-y) 当cos^2x-cos^2y=√3/2时,求sin(x+y）×sin(x-y) sin(x+y)sin(x-y)=k,求cos^2x-cos^2y y=sin平方x+2x求y' y=sin(x^2),求dy/d(x^3) y=sin(x^3),求dy/d(x^2) sin^2x+cos^2y=1/2 求3sin^2x+sin^2y的最值 已知Sin x+Sin y=1/2,Cos x+Cos y=根号3/3,求S求Sin(x-y)/2 已知sinx=3/5,x∈(π/2,π),求【sin(x+y)+sin(x-y)】/【cos（x+y）+cos（x-y）】的值 已知(sinx)2-(siny)2=m求sin(x y)sin(x-y)求sin(x+y)sin(x-y) 求y=sin[sin(x^2)]的导数 y''+2y'=sin^2x 求通解 求y=sin(e^2x)的微分y'