4 |
5 |
4 |
5 |
1-cos2A |
1-(-
|
3 |
5 |
3 |
5 |
a |
sinA |
b |
sinB |
b |
a |
2 |
3 |
3 |
5 |
2 |
5 |
4 |
5 |
2 |
5 |
1-sin2B |
1-(
|
| ||
5 |
3 |
5 |
| ||
5 |
4 |
5 |
2 |
5 |
3
| ||
25 |
π |
2 |
3 |
5 |
sin2α+sin2α |
cos2α+cos2α |
5 |
4 |
π |
2 |
A.-
| B.-
| C.
| D.
|
1 |
5 |
π |
2 |
cos(
| ||
tan(α+π)cos(-α)tanα |
A.2
| B.-2
| C.-
| D.
|
kπ |
4 |
AB |
AC |
1+sin2α-cos2α |
1+tanα |
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