A.-3 | B.3 | C.2
| D.8 |
5-c |
5-c |
2 |
A.x2+y2=2 | B.x2+y2=
| C.x2+y2=1 | D.x2+y2=4 |
x2 |
169 |
y2 |
144 |
x2 |
9 |
y2 |
16 |
A.x2+y2-10x+9=0 | B.x2+y2-10x-9=0 |
C.x2+y2+10x+9=0 | D.x2+y2+10x-9=0 |
4-x2 |
A.(x-3)2+(y+1)2=4 | B.(x+3)2+(y-1)2=4 |
C.(x-1)2+(y-1)2=4 | D.(x+1)2+(y+1)2=4 |
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