AF |
BF |
2 |
3 |
|MM′| |
|AB| |
x2 |
4 |
3 |
(x-
|
(x-
|
|
3 |
3 |
3 |
3 |
3 |
3 |
AF |
BF |
3 |
3 |
| ||
3 |
|MM′| |
|AB| |
| ||
3AB |
2π |
3 |
1 |
2 |
AF2+BF2-AB2 |
2AF•BF |
AF+BF |
2 |
3 |
4 |
|MM′| |
|AB| |
| ||
3AB |
4 |
9 |
|MM′| |
|AB| |
2 |
3 |
x2 |
a2 |
y2 |
b2 |
x2 |
a2 |
y2 |
b2 |
a2 |
c |
1 |
2 |
| ||
2 |
A.[
| B.[
| C.[
| D.[
|
x2 |
5 |
y2 |
4 |
A.(3,0) | B.(0,3) | C.(1,0) | D.(0,1) |
x2 |
36 |
y2 |
16 |
A.4
| B.2
| C.12 | D.5 |
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