设z=(x^2+y^2)*e^(-arctany/x) ,求dz

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/28 00:20:06
设z=(x^2+y^2)*e^(-arctany/x) ,求dz
x){n_FEveVjnbQrIb^~γM)U6IE)/!̔*j TyJ}X-\ԦTЮ6Dэ ΀J<;L\

设z=(x^2+y^2)*e^(-arctany/x) ,求dz
设z=(x^2+y^2)*e^(-arctany/x) ,求dz

设z=(x^2+y^2)*e^(-arctany/x) ,求dz
dz={2xe^(-arctany/x)+[y/(x^2+y^2)]*(x^2+y^2)*e^(-arctany/x)}dx
+{2ye^(-arctany/x)-[x/(x^2+y^2)]*(x^2+y^2)*e^(-arctany/x)}dy