问题
填空题
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答案
[lim n→∞
+(1-n2 2+n2
)n]3 4
=lim n→∞
+1-n2 2+n2
(lim n→∞
)n3 4
=lim n→∞
+0
-11 n2
+12 n2
=-1．
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[lim n→∞
+(1-n2 2+n2
)n]3 4
=lim n→∞
+1-n2 2+n2
(lim n→∞
)n3 4
=lim n→∞
+0
-11 n2
+12 n2
=-1．