x2 |
a2 |
y2 |
b2 |
| ||
2 |
BM |
BN |
|
6 |
3 |
x2 |
6 |
y2 |
3 |
|
12k2 |
1+2k2 |
18k2-6 |
1+2k2 |
BM |
BN |
3+3k2 |
1+2k2 |
3 |
2 |
3 |
2(1+2k2) |
3 |
2 |
3 |
2(1+2k2) |
BM |
BN |
y1-1 |
x1-2 |
y2-1 |
x2-2 |
(kx1-3k-1)(x2-2)+(kx2-3k-1)(x1-2) |
(x1-2)(x2-2) |
2kx1x2-(5k+1)(x1+x2)+12k+4 |
x1x2-2(x1+x2)+4 |
2k(18k2-6)-(5k+1)•12k2+(12k+4)(1+2k2) |
18k2-6-24k2+4(1+2k2) |
-4k2+4 |
2k2-2 |
x2 |
4 |
y2 |
5 |
2 |
A.2
| B.3 | C.2
| D.4 |
| ||
2 |
x2 |
a2 |
y2 |
b2 |
1 |
2 |
1 |
2 |
1 |
2 |
x2 |
m+2 |
y2 |
3-m |
| ||
2 |
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