3 |
4 |
1 |
tanA |
1 |
tanC |
BA |
BC |
3 |
2 |
3 |
4 |
1-cos2B |
| ||
4 |
1 |
tanA |
1 |
tanC |
cosA |
sinA |
cosC |
sinC |
cosAsinC+cosCsinA |
sinAsinC |
sin(A+C) |
sin2B |
sinB |
sin2B |
1 |
sinB |
4
| ||
7 |
BA |
BC |
3 |
2 |
BA |
BC |
3 |
2 |
3 |
4 |
2 |
3 |
3 |
3π |
4 |
π |
2 |
π |
4 |
3 |
π |
6 |
A.0 | B.
| C.kπ(k∈Z) | D.kπ+
|
3 |
4 |
3π |
4 |
π |
2 |
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