sin(x+y)sin(x-y)=k,求cos^2x-cos^2y

sin(x+y)sin(x-y)=k,求cos^2x-cos^2y y=sin(x+K)如何转换y=sin(Ax+K) sin(x*x+y)=xy 求y'x 求微分方程y'cos y+ sin(x-y)=sin(x+y)的通解. 求证sin²x-sin²y=sin(x+y)sin(x-y) 求y=sin[sin(x^2)]的导数 y=x*sin(lnx) 求dy 求y=-sin(-x)的图像, 求y=sin|x|的图像? 求y=sin x(0 sin(xy)=x+y,求dy C语言求三角函数f(x,y,z)=sin(x)/(sin(x-y)*sin(x-z))+sin(y)/(sin(y-x)*sin(y-z))+sin(z)/(sin(z-x)*sin(z-y))代码#include #include double fun(double x,double y,double z){double a,b,c,sum;a=sin(x)/(sin(x-y)*sin(x-z));b=sin(y)/(sin(y-x)*sin(y-z));c sin(xy)+ln(y-x)=x,求y` y =(cos^2) x - sin (3^x),求y' sin(xy)+ln(y-x)=x,求y y=sin平方x+2x求y' 已知(sinx)2-(siny)2=m求sin(x y)sin(x-y)求sin(x+y)sin(x-y) Mathematica y''+ sin(x) y=x