3 |
AM |
AN |
3 |
4-3 |
|-k+3| | ||
|
4 |
3 |
AM |
AN |
AC |
CM |
AN |
AC |
AN |
CM |
AN |
AC |
AN |
5 |
3 |
AN |
5 |
3 |
AC |
AM |
AN |
AC |
AN |
|
-3k-6 |
1+3k |
-5k |
1+3k |
AN |
-5 |
1+3k |
-5k |
1+3k |
AM |
AN |
AC |
AN |
-5 |
1+3k |
-15k |
1+3k |
AM |
AN |
AM |
AN |
2 |
OM |
ON |
PA |
PB |
a |
b |
a |
b |
a |
b |
b |
b |
3 |
2 |
a |
b |
A.90° | B.60° | C.45° | D.30° |
AB |
AC |
a |
b |
c |
a |
b |
c |
a |
b |
c |
A.2 | B.5 | C.2或5 | D.
|
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