全微分精通者帮忙!设z=z(x,y)由方程e的z次方-xy的2次方+sin(y+z)=0确定,求dz

2025-06-23 04:46:33
推荐回答(1个)
回答1:

(y^2+2xy-cos(y+z))/(e^z+cos(y+z))