3 |
AB |
BC |
AB |
BC |
AB |
BC |
AB |
BC |
1 |
2 |
AB |
BC |
1 |
2 |
AB |
BC |
1 |
2 |
AB |
BC |
1 |
2 |
3 |
3 |
3 |
π |
4 |
π |
3 |
2 |
π |
4 |
|
π |
4 |
3π |
4 |
11π |
12 |
π |
2 |
π |
4 |
3π |
4 |
π |
4 |
π |
4 |
| ||
2 |
2 |
| ||
2 |
cosα |
1+sinα |
sinα |
1+cosα |
2(cosα-sinα) |
1+sinα+cosα |
b |
c |
2 |
3 |
A.
| B.
| C.
| D.
|
a |
3x |
2 |
3x |
2 |
b |
x |
2 |
x |
2 |
c |
3 |
a |
b |
a |
c |
5 |
π |
3 |
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