1 |
4 |
1 |
4 |
y |
x+2 |
y |
x-2 |
1 |
4 |
x2 |
4 |
|
8km |
1+4k2 |
4m2-4 |
1+4k2 |
(1+k2)(4m2-4) |
1+4k2 |
8k2m2 |
1+4k2 |
4 |
5 |
|m| | ||
|
2
| ||
5 |
1 |
4 |
y1 |
x1-2 |
y1 |
x1+2 |
1 |
4 |
8km(4km-2) |
1+4k2 |
x2 |
4 |
y2 |
3 |
x2 |
3 |
A.
| B.
| C.
| D.1 |
A.1 | B.4 | C.8 | D.16 |
A.(2,1) | B.(1,2) | C.(3,2) | D.(-2,-3) |
v |
3 |
3 |
x2 |
a2 |
y2 |
b2 |
| ||
3 |
DM |
DN |
A.1 | B.2 | C.3 | D.4 |
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