π |
4 |
π |
2 |
4 |
5 |
12 |
13 |
π |
4 |
π |
2 |
π |
2 |
π |
4 |
4 |
5 |
1-(
|
3 |
5 |
12 |
13 |
1- (
|
5 |
13 |
4 |
5 |
12 |
13 |
3 |
5 |
5 |
13 |
63 |
65 |
3 |
5 |
12 |
13 |
4 |
5 |
5 |
13 |
16 |
65 |
sin2α |
cos2α |
63 |
16 |
cosθ | ||
|
sinθ | ||
|
A.第一象限的角 | B.第二象限的角 |
C.第三象限的角 | D.第四象限的 |
1 |
2 |
2 |
3 |
A.-
| B.
| C.-
| D.
|
CA |
CB |
4 |
7 |
3 |
11 |
14 |
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