求极限limn→∞√n[√(n+4)-√(n-3)].
limn→∞√n[√(n+4)-√(n-3)] =limn→∞√n{[(√(n+4)]2-[√(n-3)]2}/[√(n+4)+√(n-3)] =limn→∞=7√n/[√(n+4)+√(n-3)] =limn→∞7/[√(1+4/n)+(√(1-3/n)]=7/2
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/946346.html
上一篇:Have a safe trip1____ People visit other countries for many reasons. Some travel on business; others travel to visit interesting places that are only found in other countries, such as the Taji Mahal (泰姬陵) in India, or the temples of Thailand.
下一篇:简述税务代理的基本特征