n2 |
n2-1 |
n |
n+1 |
1 |
2 |
1 |
2 |
4 |
3 |
2 |
3 |
4 |
3 |
9 |
8 |
3 |
4 |
9 |
4 |
n2 |
n+1 |
1 |
2 |
12 |
1+1 |
1 |
2 |
k2 |
k+1 |
(k+1)2 |
(k+1)2-1 |
k+1 |
k+2 |
(k+1)2 |
(k+1)2-1 |
k2 |
k+1 |
k+1 |
k+2 |
(k+1)2 |
k+2 |
n |
n+1 |
A.83 | B.82 | C.81 | D.80 |
3 |
b1 |
32 |
2b2 |
33 |
3b3 |
3n |
nbn |
n |
n+1 |
1 | ||
2x+
|
A.
| B.2
| C.3
| D.4
|
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