arctany/x的导数是什么
2024-03-05 03:08:03
arctany/x的导数是什么求高手给解答
最佳答案
令z=arctany/x,则z/x=1/[1+(y/x)]*(y/x)=x/(x+y)*(-y/x)=-y/(x+y)z/y=1/[1+(y/x)]*(y/x)对y求导=x/(x+y)*(1/x)=x/(x+y).
2024-03-05 03:08:03
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