lim |
n→∞ |
1 |
S1 |
1 |
S2 |
1 |
Sn |
k(k-1) |
2 |
k(k-1) |
2 |
n(n-1) |
2 |
1 |
S1 |
1 |
S2 |
1 |
Sn |
1 |
1×2 |
1 |
2×3 |
1 |
n(n+1) |
1 |
1 |
1 |
2 |
1 |
2 |
1 |
3 |
1 |
n |
1 |
n+1 |
1 |
n+1 |
lim |
n→∞ |
1 |
S1 |
1 |
S2 |
1 |
Sn |
lim |
n→∞ |
1 |
n+1 |
lim |
n→∞ |
1 |
1•4 |
1 |
4•7 |
1 |
7•10 |
1 |
(3n-2)(3n+1) |
3-n+2-n+(-1)n(3-n-2-n) |
2 |
lim |
n→∞ |
A.
| B.
| C.
| D.
|
lim |
x→0 |
(1+x)m+a |
x |
A.-m | B.m | C.-1 | D.1 |
A.
| B.2e2 | C.e2 | D.
|
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