y2 |
a2 |
x2 |
b2 |
| ||
2 |
m |
x1 |
b |
y1 |
a |
n |
x2 |
b |
y2 |
a |
m |
n |
y2 |
a2 |
x2 |
b2 |
| ||
2 |
|
y2 |
4 |
3 |
3 |
2
| ||
k2+4 |
1 |
k2+4 |
m |
n |
3 |
6k2 |
k2+4 |
2 |
m |
n |
y12 |
4 |
| ||
2 |
2 |
1 |
2 |
2kb |
k2+4 |
b2-4 |
k2+4 |
b2-4 |
k2+4 |
2kb |
k2+4 |
|b| | ||
|
1 |
2 |
(x1+x2)2-4x1x2 |
|b|
| ||
k2+4 |
| ||
2|b| |
AB |
BQ |
BC |
1 |
2 |
CQ |
x2 |
36 |
y2 |
9 |
1 |
3 |
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