sin(x*x+y)=xy 求y'x

sin(x*x+y)=xy 求y'x sin(xy)=x+y,求dy sin(xy)=x 求dx/dysec(xy)-y ]/x 还是 x/[sec(xy)-y] sin(x+y)+e^xy=4x,y'= sin(xy)+ln(y-x)=x,求y` sin(xy)+ln(y-x)=x,求y sin(xy)=x+e^y.y'=? Sin(xy)=x+e^y求y'= Xy-sin(x+y)=1 求Y的导数 sin（x+y）+e^xy=4 求y' Z=x*sin xy+e^x+y或设y=(x)是由方程xy+sin x+sin y=1确定,求y” 设sin(x+y)=xy,求dy/dx. 求函数导数e^x-e^y=sin(xy) |x|/x+y/|y|+xy/|xy|= 求解微分方程xy'ln(x)sin(y)+cos(y)(1-x*cos(y))=0 y=y(x)由方程 [e^(x+y)]+sin(xy)=1确定,求y'(x)及y'(0) 高数齐次方程问题xy'sin(y/x)+x=ysin(y/x)Cx=e^cos(y/x) f（x,y）=sin（xy）,求fx（x,y）=?