2 |
an+1 |
16 |
21 |
|
1 |
2n+2 |
1 |
2n+3 |
1 |
n+1 |
1 |
2n+3 |
1 |
2n+2 |
1 |
2 |
1 |
3 |
5 |
6 |
16 |
21 |
1 |
3 |
1 |
4 |
1 |
5 |
47 |
60 |
16 |
21 |
1 |
4 |
1 |
5 |
1 |
6 |
1 |
7 |
319 |
420 |
320 |
420 |
16 |
21 |
16 |
21 |
n+1 |
n+2 |
A.有最小值63 | B.有最大值63 | C.有最小值31 | D.有最大值31 |
nπ |
3 |
A.470 | B.360 | C.304 | D.169 |
k | ||
2
|
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