AB |
OC |
OC |
AB |
AC |
AB |
AC |
AB |
AC |
AB |
AC |
AB |
AC |
AB |
AC |
AB |
AC |
13 |
OC |
AB |
OC |
OC |
AB |
OC |
OC |
OC |
AB |
OC |
AB |
OC |
OC |
3 |
2 |
BC |
BD |
AC |
AE |
AD |
BE |
y2 |
a2 |
a2-1 |
AP |
AQ |
a2(a+c)2-1 |
2-c2 |
1 |
3 |
1 |
2 |
a |
3 |
2 |
3 |
2 |
b |
x |
2 |
x |
2 |
π |
2 |
a |
b |
a |
b |
a |
b |
3 |
2 |
AB |
3 |
AC |
AB |
AC |
AB |
AC |
BC |
a |
b |
a |
b |
A.λ∈(0,
| B.λ∈(-
| ||||||
C.λ∈(-∞,0)∪(
| D.λ∈(-∞,-
|
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