a |
b |
x |
a |
b |
y |
1 |
k |
a |
1 |
t |
b |
x |
y |
x |
a |
b |
y |
1 |
k |
a |
1 |
t |
b |
1 |
k |
1 |
t |
1 |
k |
2 |
t |
1 |
t |
2 |
k |
x |
y |
2 |
k |
1 |
t |
1 |
k |
2 |
t |
t2+1 |
k |
1 |
t |
x |
y |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
a |
b |
c |
a |
b |
a |
c |
a |
b |
a |
5 |
a |
A.(6,-3) | B.(3,-6) | C.(-3,6) | D.(-6,3) |
a |
b |
c |
a |
b |
b |
c |
a |
a |
b |
a |
a |
b |
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