a |
b |
a |
b |
a |
b |
a |
b |
3 |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
3 |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
k2+1 |
4k |
a |
b |
k2+1 |
4k |
1 |
4 |
1 |
k |
1 |
4 |
k•
|
1 |
2 |
a |
b |
1 |
2 |
1 |
2 |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
1 |
2 |
a |
b |
BC |
BD |
CA |
CE |
AD |
BE |
OA |
a |
OB |
b |
OC |
c, |
OD |
d |
a |
c |
b |
d |
3 |
OM |
ON |
π |
2 |
π |
6 |
a |
π |
6 |
π |
6 |
b |
π |
6 |
π |
6 |
b |
a |
b |
a |
b |
m |
t |
a |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
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