问题
填空题
|
答案
(lim n→∞
+1 n2+1
+…+3 n2+1
)=2n-1 n2+1 lim n→∞
=
(1+2n-1)n 2 n2+1 lim n→∞
=1，n2 n2+1
故答案为1．
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|
(lim n→∞
+1 n2+1
+…+3 n2+1
)=2n-1 n2+1 lim n→∞
=
(1+2n-1)n 2 n2+1 lim n→∞
=1，n2 n2+1
故答案为1．