AB |
AD |
AA1 |
AB |
AD |
AA1 |
AC1 |
A.5 | B.6 | C.4 | D.8 |
AB |
AD |
AA1 |
AB |
AD |
AA1 |
AC1 |
AB |
BC |
CC1 |
AC1 |
AB |
BC |
CC1 |
AB |
BC |
CC1 |
AB |
BC |
AB |
CC1 |
BC |
CC1 |
AC1 |
CB |
a |
AC |
b |
a |
b |
a |
b |
OA |
OB |
OC |
A.4a-5b=3 | B.5a-4b=3 | C.4a+5b=14 | D.5a+4b=14 |
x2 |
4 |
PF1 |
PF2 |
BF1 |
CF1 |
AE |
EC |
BF |
FC |
DP |
PC |
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