若lim(2n-√4n^2+an+3)=1,n→∞,求a.

mm新星2022-10-04 11:39:541条回答

已提交,审核后显示!提交回复

共1条回复
vadaci 共回答了20个问题 | 采纳率95%
lim(2n-√4n^2+an+3)*(2n+√4n^2+an+3)/(2n+√4n^2+an+3) n→∞,
=lim(4n^2-4n^2-an-3)/(2n+√4n^2+an+3)
=-a/4=1 ,a=-4
1年前

相关推荐