3 |
5 |
3an |
2an+1 |
1 |
1+x |
1 |
(1+x)2 |
2 |
3n |
n2 |
n+1 |
3an |
2an+1 |
1 |
an+1 |
2 |
3 |
1 |
3an |
1 |
an+1 |
1 |
3 |
1 |
an |
1 |
an |
2 |
3 |
1 |
an |
2 |
3 |
1 |
3 |
1 |
an |
2 |
3 |
1 |
3n-1 |
2 |
3n |
3n |
3n+2 |
3n |
3n+2 |
1 |
1+x |
1 |
(1+x)2 |
2 |
3n |
1 |
1+x |
1 |
(1+x)2 |
2 |
3n |
1 |
1+x |
1 |
(1+x)2 |
1 |
an |
1 |
an |
1 |
(1+x)2 |
2 |
1+x |
1 |
an |
1 |
1+x |
1 |
1+x |
1 |
(1+x)2 |
2 |
3 |
1 |
1+x |
1 |
(1+x)2 |
2 |
32 |
1 |
1+x |
1 |
(1+x)2 |
2 |
3n |
n |
1+x |
1 |
(1+x)2 |
2 |
3 |
2 |
32 |
2 |
3n |
1 |
n |
2 |
3 |
2 |
32 |
2 |
3n |
| ||||
n(1-
|
1 |
n |
1 |
3n |
n | ||||
1+
|
n2 | ||
n+1-
|
n2 |
n+1 |
1+2+3+…+n |
n |
1 |
anan+1 |
1 |
n(n+1) |
c1 |
b1 |
c2 |
b2 |
c3 |
b3 |
cn |
bn |
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