a |
e1 |
e2 |
b |
e1 |
e2 |
a |
b |
e1 |
e2 |
a |
b |
a |
b |
e1 |
e2 |
e1 |
e2 |
|
2-cosθ |
sinθ |
2-cosθ |
sinθ |
2-(1-2sin2
| ||||
2sin
|
3sin2
| ||||
2sin
|
1+3tan2
| ||
2tan
|
3 |
2 |
θ |
2 |
1 | ||
2tan
|
θ |
2 |
3 |
2 |
θ |
2 |
1 | ||
2tan
|
3 |
θ |
2 |
| ||
3 |
π |
3 |
π |
4 |
B |
2 |
3 |
π |
6 |
π |
3 |
π |
3 |
x |
2 |
π |
2 |
x |
2 |
π |
2 |
π |
2 |
m |
3 |
n |
B |
2 |
m |
n |
m |
3 |
n |
B |
2 |
m |
n |
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