x |
1 |
x |
15 |
2 |
lim |
n→∞ |
1 |
x |
1 |
x2 |
1 |
xn |
x |
1 |
x |
18-3r |
2 |
15 |
2 |
15 |
2 |
lim |
n→∞ |
1 |
x |
1 |
x2 |
1 |
xn |
lim |
n→∞ |
1 |
2 |
1 |
22 |
1 |
2n |
lim |
n→∞ |
| ||
1-
|
1 |
2 |
a1+2a2+3a3+…+nan |
1+2+3+…+n |
qx |
qx+p-1 |
lim |
n→∞ |
| ||
2 |
lim |
n→∞ |
|
lim |
n→∞ |
lim |
n→+∞ |
f(n2) |
[f(n)]2 |
1 |
n |
2 |
n |
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