a |
b |
1 |
2 |
| ||
2 |
a |
b |
a |
b |
a |
b |
3 |
a |
b |
a |
3 |
b |
a |
cos22α+sin22α |
b |
(
|
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
3 |
a |
b |
a |
3 |
b |
a |
b |
1 |
2 |
| ||
2 |
π |
6 |
π |
6 |
5π |
12 |
11π |
12 |
a |
b |
a |
b |
a |
b |
a |
b |
1 |
4 |
a |
a |
b |
. |
a |
. |
b |
. |
a |
. |
b |
. |
a |
. |
b |
a |
b |
a |
b |
a |
b |
A.-3 | B.
| C.3 | D.-
|
a |
b |
a |
b |
A.
| B.
| C.
| D.
|
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