A.(x+1)2+y2=2 | B.(x+1)2+y2=4 | C.(x-1)2+y2=2 | D.(x-1)2+y2=4 |
p |
2 |
|4×(-1)+3×0-6| | ||
|
5 |
A.x2+y2+2x+4y=0 | B.x2+y2+2x-4y=0 |
C.x2+y2-2x+4y=0 | D.x2+y2-2x-4y=0 |
3 |
t+3 |
t-3 |
1 |
4 |
A.(-1,
| B.(1,-
| C.(1,-
| D.(-1,
|
A.(x-1)2+y2=1 | B.(x+1)2+y2=1 | ||||||||
C.x2+(y-
| D.x2+(y+
|
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