π |
4 |
π |
4 |
π |
12 |
π |
2 |
π |
4 |
π |
4 |
1-cos2x |
2 |
1 |
2 |
1 |
2 |
1 |
2 |
2sinα•cosα |
sin 2α+cos 2α |
2tanα |
1+tan 2α |
4 |
5 |
cos 2α-sin 2α |
cos 2α+sin 2α |
1-tan 2α |
1+tan 2α |
3 |
5 |
1 |
2 |
1 |
2 |
2sinαcosα |
sin2α+cos2α |
2tanα |
1+tan2α |
4 |
5 |
cos2α-sin2a |
sin2α +cos2a |
1-tan2α |
1+tan2α |
3 |
5 |
3 |
5 |
1 |
2 |
1 |
2 |
| ||
2 |
π |
4 |
1 |
2 |
π |
12 |
π |
2 |
π |
4 |
5π |
12 |
5π |
4 |
π |
4 |
| ||
2 |
| ||
2 |
π |
4 |
1 |
2 |
1+
| ||
2 |
π |
4 |
1 |
2 |
a |
b |
a |
b |
2 |
a |
b |
c |
a |
b |
c |
1 |
2 |
3
| ||
10 |
2 |
3
| ||
5 |
cos(α+A)cos(α+B) |
cos2α |
| ||
5 |
3 |
4 |
1 |
tanA |
1 |
tanC |
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