题目内容
| lim |
| n→∞ |
| 2n+1 |
| 1+2n |
| A.1 | B.2 | C.3 | D.不存在 |
由题意,
=
∵
=0
∴
=2
∴
=2
故选B.
| lim |
| n→∞ |
| 2n+1 |
| 1+2n |
| lim |
| n→∞ |
| 1 | ||||
|
∵
| lim |
| n→∞ |
| 1 |
| 2n+1 |
∴
| lim |
| n→∞ |
| 1 | ||||
|
∴
| lim |
| n→∞ |
| 2n+1 |
| 1+2n |
故选B.
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极限
的值为( )
| lim |
| n→∞ |
| 2n+1+7n2 |
| 3n-2n |
| A、2 | ||
| B、1 | ||
C、-
| ||
| D、0 |