a |
b |
a |
b |
2
| ||
5 |
π |
2 |
π |
2 |
5 |
13 |
a |
b |
a |
b |
2
| ||
5 |
(cosα-cosβ)2+(sinα-sinβ)2 |
2-2cos(α-β) |
4 |
5 |
3 |
5 |
π |
2 |
π |
2 |
3 |
5 |
4 |
5 |
5 |
13 |
12 |
13 |
4 |
5 |
12 |
13 |
3 |
5 |
5 |
13 |
33 |
65 |
A.
| B.
| C.
| D.
|
m |
n |
π |
4 |
B |
2 |
m |
n |
3 |
C |
2 |
3 |
A |
2 |
A |
2 |
1 |
2 |
5 |
13 |
π |
2 |
π |
4 |
sinα+cosα |
sinα-cosα |
3π |
2 |
A.
| B.
| C.±
| D.-
|
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