p |
2 |
p |
2 |
d |
p |
2 |
p |
2 |
p |
2 |
p |
2 |
p |
y0 |
|
y1-y0 |
x1-x0 |
y2-y0 |
x2-x0 |
y1-y0 | ||||||||
|
y2-y0 | ||||||||
|
2p |
y1+y0 |
2p |
y2+y0 |
2p(y1+y2+2y0) |
(y1+y0)(y2+y0) |
y2-y1 |
x2-x1 |
y2-y1 | ||||||||
|
2p |
y1+y2 |
|
2p |
k |
2py0 |
k |
2p |
k |
2p |
k |
2p |
-k |
2p |
k |
2p |
y0+y0′ |
A.±1 | B.±
| C.±
| D.±
|
PA |
AQ |
d |
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