BA |
BC |
(sin2
| ||||
cosAcosBcosC |
BA |
BC |
BA |
BC |
AB2+BC2-AC2 |
2AB•BC |
49+25-36 |
2×7×5 |
19 |
35 |
BA |
BC |
19 |
35 |
1-cos2B |
| ||
35 |
12
| ||
35 |
2sinBcosB(sin2
| ||||
cosAcosBcosC |
2sinB |
cosAcosC |
1-cos(A+C) |
2 |
1+cos(A-C) |
2 |
sinB[-cos(A+C)-cos(A-C)] |
cosAcosC |
sinB(cosAcosC-sinAsinC+cosAcosC+sinAsinC) |
cosAcosC |
24
| ||
35 |
m |
3 |
n |
m |
n |
| ||
2 |
sin2α |
3-cos2α |
A |
2 |
C |
2 |
3 |
A |
2 |
C |
2 |
m |
3 |
n |
π |
2 |
m |
n |
| ||
3 |
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