3 |
x |
4 |
x |
4 |
x |
4 |
1 |
2 |
| ||
2 |
x |
2 |
1 |
2 |
x |
2 |
1 |
2 |
x |
2 |
π |
6 |
π |
2 |
x |
2 |
π |
6 |
π |
2 |
4π |
3 |
2π |
3 |
4π |
3 |
2π |
3 |
1 |
2 |
π |
3 |
2 |
3 |
π |
6 |
π |
2 |
π |
6 |
π |
3 |
π |
6 |
2π |
3 |
| ||
2 |
π |
6 |
| ||
2 |
| ||
2 |
π |
6 |
π |
6 |
π |
6 |
A.0 | B.3 | C.-3 | D.3或-3 |
a |
b |
a |
3 |
b |
a |
b |
π |
2 |
3 |
π |
3 |
A.
| B.
| C.
| D.
|
π |
12 |
π |
12 |
A.(
| B.(
| C.(
| D.(
|
π |
3 |
3 |
π |
3 |
3 |
π |
2 |
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