函数f(x,y)=√(x2+y2)在点(0,0)处()
A.连续;
B.不连续;
C.可微;
D.偏导数存在.
正确答案是A
扫描二维码免费使用微信小程序搜题/刷题/查看解析。
版权声明:本文由翰林刷题小程序授权发布,如需转载请注明出处。
本文链接:https://doc.20230611.cn/post/427274.html
上一篇:Complete the following sentence with a (compound) word derived from the one(s) given in bracket.It is very ( ) to interrupt during someone's conversation.(courtesy)
Complete the following sentence with a (compound) word derived from the one(s) given in bracket.
It is very ( ) to interrupt during someone's conversation.(courtesy)
下一篇:简述公众心理的特点。