a |
b |
2 |
11π |
12 |
17π |
12 |
a |
b |
a |
b |
4
| ||
5 |
a |
b |
2 |
a |
b |
(cosθ-sinθ+
|
4+2
|
4+4cos(θ+
|
1+cos(θ+
|
11π |
12 |
17π |
12 |
7π |
6 |
π |
4 |
5π |
3 |
| ||
2 |
π |
4 |
1 |
2 |
a |
b |
6 |
a |
b |
4
| ||
5 |
π |
4 |
3 |
5 |
π |
4 |
π |
4 |
9 |
25 |
7 |
25 |
a, |
b |
a |
b |
a |
b |
a |
b |
|OA |
OB |
AB |
A.[-2,2] | B.[2,2
| ||||
C.(-2
| D.[2,2
|
OA |
OB |
OC |
OA |
OB |
OA |
OB |
3 |
OC |
a |
b |
a |
b |
a |
c |
b |
c |
c |
A.
| B.
| C.
| D.
|
AB |
AC |
AB |
AC |
AM |
AB |
AC |
AM |
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