5 |
13 |
π |
2 |
α |
2 |
5 |
13 |
π |
2 |
1-sin2α |
12 |
13 |
sinα |
cosα |
5 |
12 |
2tan
| ||
1-tan2
|
2tan
| ||
1-tan2
|
5 |
12 |
α |
2 |
α |
2 |
α |
2 |
1 |
5 |
α |
2 |
π |
2 |
α |
2 |
π |
4 |
π |
2 |
α |
2 |
α |
2 |
12 |
13 |
119 |
169 |
α |
2 |
119 |
169 |
119 |
169 |
m |
n |
m |
n |
A.
| B.π | C.
| D.2π |
1 |
sinx |
π |
2 |
a |
α+β |
2 |
α-β |
2 |
b |
α+β |
2 |
α-β |
2 |
2π |
3 |
a |
b |
a |
b |
5 |
2 |
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