x2 |
a2 |
y2 |
b2 |
| ||
2 |
2 |
OA |
OB |
op |
PA |
PB |
2
| ||
3 |
c |
a |
| ||
2 |
c2 |
a2 |
a2-b2 |
a2 |
1 |
2 |
| ||
|
OA |
OB |
OC |
0 |
x2 |
2 |
|
1 |
2 |
8k2 |
1+2k2 |
8k2-2 |
1+2k2 |
OA |
OB |
OP |
x1+x2 |
t |
8k2 |
t(1+2k2) |
yy+y2 |
t |
1 |
t |
-4k |
t(1+2k2) |
(8k2)2 |
t2(1+2k2)2 |
(-4k)2 |
t2(1+2k2)2 |
PA |
PB |
2
| ||
3 |
1+k2 |
2
| ||
3 |
20 |
9 |
64k4 |
(1+2k2)2 |
8k2-2 |
1+2k2 |
20 |
9 |
1 |
4 |
1 |
4 |
1 |
2 |
16k2 |
1+2k2 |
8 |
1+2k2 |
2
| ||
3 |
2
| ||
3 |
2
| ||
3 |
2
| ||
3 |
a |
b |
a |
b |
3 |
5 |
7 |
7 |
PF1 |
PF2 |
PF1 |
PF2 |
A.
| B.
| C.
| D.
|
AB |
a |
AC |
b |
a |
b |
AO |
a |
b |
A.
| B.(
| ||||||||||||||||||
C.
| D.
|
| ||||
1 |
| ||||
|
| ||||
|
A.|
| B.|
| C.|
| D.|
|
n |
© 2017-2019 超级试练试题库,All Rights Reserved.