求x^2+xy=arctan(xy)所确定的隐函数y=f(x)的导数

求x^2+xy=arctan(xy)所确定的隐函数y=f(x)的导数 u=xy^2+arctan(xy) 求du 设z=arctan(xy)+2x^2+y^2,求dz f(arctan(y/x))=xy求y对x的一阶导. 设z=arctan(xy),y=e^x ,求dz/dx ． z=arctan(xy),而y=e^x,求dz/dy 求Z=arctan(xy),而y=e^x的全导数 高数 求全微分求函数z=arctan(x+y)/(1-xy)的全微分 z=x*arctan(xy),求(dz/dx)|(1,1),(dz/dy)|(1,1) 函数求下列二阶偏导数的Z=arctan((x+y)/(1-xy)) z=arctan【(x+y)/(1-xy)】的偏导数 讨论函数z=arctan(x+y)/(1-xy)的连续性方程是z=arctan[(x+y)/(1-xy)] 求函数z=arctan(xy)的全微分. z=arctan(xy)偏导数怎么求呢 设Y=X由X=arctan与2Y-xy^2-e^t=5所确定,求DY除以DX.并求出曲线的切线方程. 全导数:设z=arctan(xy),而y=e*x次方,求dz/dx设z=arctan(xy),而y=e*x次方,求dz/dx, 解微分方程y(x^2-xy+y^2)+x(x^2+xy+y^2)dy/dx=0答案yx=ce^[-arctan(y/x)] 3X^2+XY+Y=15 求XY.