设siny-e^x+xy^2=0,求dy/dx

设e^xy-xy^2=Siny,求dy/dx siny+e^x-xy^2=0,求dy/dx 设siny-e^x+xy^2=0,求dy/dx 设siny+e的x次方-xy²=0,求dy/dx 求隐函数的偏导数siny+e^x-xy^2=0,求dy/dx 设siny+ex(是e的x次方)-xy=0.求dy/dx 设siny+e^3x-2x^3y^2=0,求dy/dx 设siny+e的x次方-xy05=0,求dy/dx x*e^y+siny=0 求dy/dx 求由方程x^2y-e^xy=siny确定的隐函数的导数dy/dx 设由x^2y-e^(2y)=siny确定y是x的函数,求dy/dx z=xy,x=siny,求dz/dy 设x+y=siny,求dy/dx sinx+ siny=xy求dy/dx 设L为逆时针方向的圆周x^2y^2=9则曲线积分∫L（e^(x-y)+xy）dx+(siny+e^(x-y))dy=?利用二重积分的对称性 ∫L（-e^(x-y)+xy）dx+(siny+e^(x-y))dy 为什么无缘无故的在前面加了一个符号?希望解释清楚些 而且∫ 设xy-e^x=siny确定函数y=f(x),求y' 已知方程xy-eˆ2x=siny 确定隐函数y=y（x）,求dy/dx请给出具体步骤! 设e^(x+y)+cos(xy)=0确定y是x的函数求dy