4 |
sinx |
S10 |
10 |
S100 |
100 |
S101 |
110 |
a2 |
b2 |
b2 |
a2 |
a |
b |
b |
a |
A.0 | B.1 | C.2 | D.3 |
π |
2 |
4 |
sinx |
sinx×
|
Sn |
n |
d |
2 |
S10 |
10 |
S100 |
100 |
S110 |
110 |
a |
b |
b |
a |
a2 |
b2 |
b2 |
a2 |
a |
b |
b |
a |
a |
b |
b |
a |
a |
b |
b |
a |
2 |
3 |
2 |
3 |
π |
4 |
| ||
2 |
| ||
2 |
1 |
3 |
1 |
2 |
1 |
3 |
A.1 | B.2 | C.3 | D.4 |
A.①② | B.②③ | C.①④ | D.②④ |
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