设f(x+y,x-y)=x2-y2+xy/(x+y),求f(u,v),并求

admin2021-10-18  7

问题 设f(x+y,x-y)=x2-y2+xy/(x+y),求f(u,v),并求

选项

答案[*]从而f(u,v)=uv+(u2-v2)/4u,于是df/du=v+1/4+v2/4u2,df/dudv=1+v/2u2

解析
转载请注明原文地址:https://kaotiyun.com/show/m8y4777K
0

最新回复(0)