问题
填空题
|
答案
lim n→∞
=n +2 1+2+…+n lim n→∞
=n+2 n(n+1) 2 lim n→∞
=0．
+1 n 2 n 2
+1 2 n 2
答案：0．
搜题请搜索小程序“爱下问搜题”
|
lim n→∞
=n +2 1+2+…+n lim n→∞
=n+2 n(n+1) 2 lim n→∞
=0．
+1 n 2 n 2
+1 2 n 2
答案：0．