AP |
3 |
5 |
PB |
AP |
PB |
AP |
3 |
5 |
PB |
|
8 |
5 |
8 |
3 |
a2+b2 |
x2 |
25 |
y2 |
9 |
x2 |
25 |
y2 |
9 |
|
| ||
9m2+25 |
90
| ||
9m2+25 |
1 |
2 |
90
| ||
9m2+25 |
20
| ||
m2+
|
20
| ||
m2+1+
|
20 | ||||||
|
20 | ||
|
15 |
2 |
m2+1 |
16 | ||
9
|
| ||
3 |
15 |
2 |
7 |
x2 |
a2 |
y2 |
b2 |
sin∠AFB |
sin∠ABF+sin∠BAF |
3 |
3 |
3 |
x2 |
k-3 |
y2 |
k+3 |
25 |
4 |
4 |
5 |
x2 |
a2 |
y2 |
b2 |
PF1 |
PF2 |
A.(0,
| B.(0,
| C.[
| D.[
|
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