1 |
3 |
a2+b2 |
x2 |
a2 |
y2 |
b2 |
A.2 | B.3 | C.5 | D.6 |
c |
3 |
ab | ||
|
ab |
c |
c |
3 |
1 |
3 |
a2+b2 |
2 |
c2 |
2 |
1 |
3 |
c2 |
2 |
x2 |
a2 |
y2 |
b2 |
x2 |
3 |
A.
| B.
| C.
| D.
|
x2 |
a2 |
y2 |
b2 |
OF |
OQ |
OP |
A.(1,+∞) | B.(2,+∞) | C.[2,2
| D.(
|
x2 |
a2 |
y2 |
b2 |
PF1 |
PF2 |
5 |
x2 |
a2 |
y 2 |
b2 |
OP |
OF2 |
F2P |
A.2 | B.
| C.3 | D.
|
x2 |
a2 |
y2 |
2 |
π |
3 |
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