S | 21 |
S | 22 |
A.200 | B.100 | C.64 | D.36 |
1 |
4 |
1 |
4 |
S | 21 |
S | 22 |
A.(x-3)2+(y+4)2=16 | B.(x+3)2+(y-4)2=16 |
C.(x-3)2+(y+4)2=9 | D.(x+3)2+(y-4)2=9 |
A.
| B.2
| C.
| D.
|
1 |
2 |
A.相切 |
B.相交且直线不过圆心 |
C.相交且直线不一定过圆心 |
D.相离 |
A.[-12,8] | B.[-8,12] | C.[-22,18] | D.[-18,22] |
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