2 |
3 |
1 |
2 |
1 |
2 |
3 |
2 |
1 |
2 |
2 |
3 |
1 |
2 |
2 |
3 |
1 |
2 |
2 |
3 |
1 |
2 |
2 |
3 |
1 |
2 |
1-cos2x |
2 |
2 |
3 |
1 |
2 |
1 |
2 |
2 |
3 |
1 |
2 |
1 |
2 |
3 |
2 |
2 |
3 |
1 |
2 |
2 |
3 |
3 |
2 |
2 |
3 |
1 |
2 |
2 |
3 |
1 |
2 |
3 |
b |
π |
4 |
π |
12 |
π |
4 |
π |
4 |
π |
4 |
1 |
2 |
a |
b |
a |
b |
π |
4 |
3 |
8 |
5 |
π |
6 |
2π |
3 |
π |
4 |
A.x=-
| B.x=-
| C.x=-
| D.x=-π |
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