3 |
π |
2 |
P1P2 |
P2P3 |
P2P3 |
P3P4 |
P3P4 |
P4P5 |
P4P5 |
P5P6 |
PnPn+1 |
pn+1pn+2 |
lim |
n→∞ |
Sn |
1+(-2)n |
3 |
π |
2 |
3 |
3 |
3 |
P2k-1P2k |
3 |
p2kp2k+1 |
3 |
p2k+1p2k+2 |
3 |
P2k-1P2k |
p2kp2k+1 |
p2kp2k+1 |
p2k+1p2k+2 |
PnPn+1 |
pn+1pn+2 |
2[(-2)n-1] |
3 |
lim |
n→+∞ |
Sn |
1+(-2)n |
2 |
3 |
lim |
n→+∞ |
1-(-2)n |
1+(-2)n |
2 |
3 |
lim |
n→+∞ |
| ||
|
2 |
3 |
2 |
3 |
lim |
n→∞ |
1 |
3 |
1 |
4 |
1 |
5 |
1 |
n+2 |
lim |
n→∞ |
1 |
2 |
1 |
3 |
1 |
n+1 |
lim |
n→∞ |
n2+12n | ||
3n2-30+
|
lim |
n→∞ |
| ||
a1+a2 |
3 |
2 |
lim |
n→∞ |
1 |
n2 |
2 |
n2 |
n |
n2 |
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