y=1-x^2 x>=0 ,y=sin|x|/x x

y=1-x^2 x>=0 ,y=sin|x|/x x x*y'*sin(y/x)-y*sin(y/x)+x=0 求微分方程的解 高数 求导 1 Y=x+x^x 2 Y=sin(x+y 求导：x^2*y^2 + x sin(y) = 1 Matlab编程问题 cos(x*y)*cos(x*(1-y))-0.5x*sin(x*y)*sin(x*(1-y))= 证明sinx+siny+sinz-sin(x+y+z)=4sin((x+y)/2)sin((x+y)/2)sin((x+ Y=1/X X^2+Y^2=9 Y=|-2x| X=-3|sin y| sin(x+y)sin(x-y)=k,求cos^2x-cos^2y 求导 y=sin(x^x) y=(x^2+x)/(x+1) y =(cos^2) x - sin (3^x),求y' matlab菜鸟问题>> x=0:.12:1;>> y=(x.^2-3*x+5).*exp(-5*x).*sin(x);