3 |
3 |
1+cos2ωx |
2 |
| ||
2 |
π |
3 |
1 |
2 |
2π |
2ω |
π |
3 |
1 |
2 |
π |
3 |
2π |
3 |
π |
6 |
2π |
3 |
π |
6 |
π |
3 |
π |
2 |
π |
12 |
kπ |
2 |
π |
12 |
kπ |
2 |
1 |
2 |
π |
2 |
π |
3 |
π |
3 |
4π |
3 |
π |
3 |
1 |
2 |
1 |
2 |
π |
3 |
1 |
2 |
1 |
2 |
a |
b |
3 |
a |
b |
| ||
2 |
π |
2 |
a |
b |
1 |
2 |
a |
a |
b |
π |
2 |
| ||
2 |
3 |
2 |
3 |
4 |
3 |
π |
6 |
π |
6 |
π |
6 |
. |
| . |
. |
| . |
A.x=
| B.x=
| C.x=π | D.x=0 |
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