A.(2,3)、
| B.(-2,-3)、2 | C.(2,3)、1 | D.(-2,-3)、
|
2 |
A.x2+y2+2x-3=0(y≠0) | B.x2+y2-2x+3=0(y≠0) |
C.x2+y2-2x-3=0(y≠0) | D.x2+y2+2x+3=0(y≠0) |
A.(x-6)2+(y-5)2=10 | B.(x-6)2+(y+5)2=10 |
C.(x-5)2+(y-6)2=10 | D.(x-5)2+(y+6)2=10 |
A.(2,-1),3 | B.(-2,1),3 | C.(-2,-1),3 | D.(2,-1),9 |
A.(x-1)2+(y+1)2=2 | B.(x+1)2+(y-1)2=4 |
C.(x+1)2+(y-1)2=2 | D.(x-1)2+(y+1)2=4 |
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