x2 |
a2 |
y2 |
b2 |
a2 |
c |
OA |
OB |
a2 |
c |
a |
2 |
|
a2 |
c |
ab |
c |
OA |
OC |
a2 |
c |
x2 |
4 |
y2 |
12 |
|
BP |
BN |
36 |
3t2-1 |
-24t |
3t2-1 |
BP |
BN |
36 |
3t2-1 |
-24t |
3t2-1 |
3t2+4 |
3t2-1 |
1 |
3 |
1 |
2 |
3 |
2 |
| ||
|3t2-1| |
18
| ||
|3t2-1| |
18
| ||
1-3t2 |
6
| ||||
1-3t2 |
3 |
| ||
u |
3 |
|
3 |
4(
|
1 |
u |
1 |
u |
OA |
OB |
OC |
A.m≠-2 | B.m≠
| C.m≠1 | D.m≠-1 |
p |
q |
p |
q |
A.锐角 | B.钝角 | C.直角 | D.不确定 |
3 |
3 |
BC |
CE |
A.2 | B.
| C.-3 | D.-
|
a |
b |
AB |
a |
b |
BC |
a |
b |
CD |
a |
b |
A.A,B,D | B.A,B,C | C.B,C,D | D.A,C,D |
AP |
AB |
AC |
A.
| B.
| C.
| D.
|
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