x2 |
4 |
y |
2 |
A.3 | B.4 | C.2 | D.1 |
a2 |
c |
4
| ||
2 |
|PF2| | ||||||
|
|
| ||
2 |
x2 |
a2 |
y2 |
b2 |
1 |
2 |
x2 |
16 |
y2 |
9 |
A.6 | B.5 | C.4 | D.3 |
x2 |
a2 |
y2 |
b2 |
A.(0,
| B.(
| C.(1,
| D.(
|
x2 |
m |
y2 |
n |
x2 |
p |
y2 |
q |
PF1 |
PF2 |
A.
| B.
| C.m-p | D.n-q |
x2 |
a2 |
y2 |
b2 |
1+
| ||
2 |
A.45° | B.60° | C.90° | D.120° |
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