lim |
n→∞ |
2n2+1 |
3n(n-1) |
lim |
n→∞ |
2n2+1 |
3n(n-1) |
lim |
n→∞ |
2+
| ||
3-
|
2+
| ||||
3-
|
2 |
3 |
2 |
3 |
A.(-1,1) | B.(-2,3) | C.(-1,2) | D.(-3,-2) |
|
A.等于0 | B.等于1 | C.等于0或1 | D.不存在 |
lim |
n→∞ |
(n+1)(1-3n) |
(2-n)(n2+n+1) |
lim |
n→+∞ |
Sn+1 |
Sn |
A.q≥1 | B.0<q<1 | C.0<q≤1 | D.q>1 |
1 |
4 |
lim |
n→∞ |
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