... !Mi8=hQ#W:#-()%<89*/(),+,9k,.':7$:];/a0L$#&+^*+oN;$B&40g$I&;$&+$0<&&$(#&+^*!LT+^*L#&+$N;&$&+$0+4=!>9vM1d2d1d2d 3 d ... $a(+^*+$N;&+$0M1s(&$(O7+,X+7#J&;E71G$&$(O&+,,&$1;@F1G$1j( )M 4 ;10- 2j( )M 2;13j( )M 3; 2- ... A 3; –5 , B 4;–6 , C 3; 1 2j( ) ( ) ( ) A 1; 2 , B 5; 2 , C 1; 3 3jAB : 2x 3y 21 0, BC : 2x 3y 9 0, CA : 3x 2y 6 0- + = + + = - - =4jAB : 4x 3y 12 0, BC : 3x 4y 24...