OA |
OB |
2π |
3 |
AB |
OC |
OA |
OB |
. |
R- |
OC |
OA |
OB |
OD |
OE |
CD |
π |
6 |
OC |
OD |
OE |
OC |
OA |
OB |
OA |
OD |
OB |
OE |
OA |
OB |
OD |
OE |
CD |
π |
3 |
OC |
sin∠D |
CD |
sin∠COD |
OD |
sin∠OCD |
1 | ||
sin
|
y |
sinθ |
x | ||
sin(
|
2
| ||
3 |
2π |
3 |
2
| ||
3 |
2π |
3 |
2
| ||
3 |
2π |
3 |
2
| ||
3 |
2
| ||
3 |
2π |
3 |
2
| ||
3 |
2π |
3 |
2π |
3 |
π |
6 |
π |
6 |
π |
6 |
π |
6 |
π |
6 |
5π |
6 |
π |
6 |
1 |
2 |
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OC |
OA |
OB |
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OA |
OB |
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OC |
OA |
OB |
2 |
2 |
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AB |
OC |
OA |
OB |
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