12 |
13 |
π |
4 |
1-cos2A |
1-(-
|
5 |
13 |
a |
sinA |
b |
sinB |
b |
a |
39 |
25 |
5 |
13 |
3 |
5 |
1-sin2B |
4 |
5 |
7 |
25 |
24 |
25 |
π |
4 |
π |
4 |
π |
4 |
31
| ||
50 |
1 |
3 |
π |
6 |
3π |
2 |
7π |
2 |
1 |
2 |
sin(π-α)+cos(α-π) | ||||
|
tanA•tanB |
tanA+tanB |
5 |
4 |
π |
4 |
3 |
5 |
3 |
5 |
π |
2 |
2 |
3 |
sinx+cosx |
sinx-cosx |
A.2 | B.-2 | C.3 | D.-3 |
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