| n+2 |
| n!+(n+1)!+(n+2)! |
| lim |
| n→∞ |
| A、0 | ||
B、
| ||
C、
| ||
| D、不存在 |
| n+2 |
| n!+(n+1)!+(n+2)! |
| 1 |
| (n+1)! |
| 1 |
| (n+2)! |
| n+2 |
| n!+(n+1)!+(n+2)! |
| n+2 |
| n![1+(n+1)+(n+2)(n+1)] |
| n+2 |
| n!(n+2)2 |
| 1 |
| n!(n+2) |
| 1 |
| (n+1)! |
| 1 |
| (n+2)! |
| 1 |
| 2! |
| 1 |
| 3! |
| 1 |
| 3! |
| 1 |
| 4! |
| 1 |
| (n+1)! |
| 1 |
| (n+2)! |
| 1 |
| 2! |
| 1 |
| (n+2)! |
| lim |
| n→∞ |
| lim |
| n→∞ |
| 1 |
| 2! |
| 1 |
| (n+2)! |
| 1 |
| 2! |
| lim |
| n→∞ |
| 1 |
| (n+2)! |
| 1 |
| 2! |
| 1 |
| 2! |
| 1 |
| 2 |
| 1 |
| (n+1)! |
| 1 |
| (n+2)! |
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