π |
4 |
1 |
2 |
π |
2 |
sin2α-2cos2α | ||
sin(α-
|
π |
4 |
1 |
2 |
1+tanα |
1-tanα |
1 |
2 |
sinα |
cosα |
1 |
10 |
| ||
10 |
3
| ||
10 |
3 |
5 |
π |
4 |
π |
4 |
π |
4 |
| ||
5 |
sin2α-2cos2α | ||
sin(α-
|
4
| ||
5 |
a |
b |
a |
3π |
4 |
a |
b |
b |
t |
b |
t |
c |
C |
2 |
b |
c |
. |
| . |
1 |
7 |
. |
| . |
3
| ||
14 |
π |
2 |
A.
| B.
| C.
| D.
|
A.-
| B.-
| C.
| D.-
|
π |
4 |
π |
4 |
| ||
4 |
3π |
4 |
A.
| B.-
| C.
| D.
|
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