OA |
AB |
OB |
BF |
FA |
x2 |
a2 |
y2 |
b2 |
BF |
FA |
π |
4 |
b |
a |
b2 |
a2 |
c2-a2 |
a2 |
|
3 |
4 |
9 |
16 |
|AB| |
|OA| |
4 |
3 |
4 |
3 |
1 |
2 |
2k |
1-k2 |
4 |
3 |
1 |
2 |
b |
a |
1 |
2 |
b2 |
a2 |
c2-a2 |
a2 |
1 |
4 |
5 |
4 |
| ||
2 |
x2 |
4b2 |
y2 |
b2 |
5 |
5 |
5 |
32
| ||
15 |
84b2 |
15 |
(1+4)[(
|
32b2 |
9 |
4×84b2 |
3 |
x2 |
36 |
y2 |
9 |
x2 |
a2 |
y2 |
b2 |
3 |
OP |
OQ |
PR |
RQ |
MF |
FN |
x2 |
a2 |
y2 |
b2 |
AB |
AF |
PQ |
OM |
ON |
32 |
7 |