\rBE,_aD, BD=3,9 Rt4ABDb,4>=4,?/(0, 1), 8 (4, 4),?\r(0, T ) , /g /Z 4, BkBlD FBlAA'=5,9 'h b ?/ 'i=.jhKkW\rX\nlm.\r23 .>(1)?61(-1, 3)P`q/rG (4, 0),t45C 0wP`5 p?\r,\r0xP`3 p??yzt{|\}t 4 8 4 #$%,4 2),\r8 (3,-2). (2)? ~ t A R G ,-!b/0?4(3,-\r5), ^(2,-1), 6(1,-3). (3)\}t
G #$%,4 3),(1, 2), G (3,1).\rIy\r24 .>(1) ", - y ./0\r 0 ? !9??y . 5 ? * 1,...-1,-\r),QE PQ22 E. = X-2X=.\r25 .>(1) /hZp; p\n \r,= X 2 X 8 + X 2 X 9 + ><3X6+9X6=80. (2)#$%? A B Q K 80..\r26.>? # $ % .(2)¡¢£?y¤x .?V 4g3-(-2)=5,?= X 5X2=5. (3)\r¥9. ¦§ 5,=10, .¦? z¨©4,ªP 9 y .??.¦./(0, 5)¬ (0,-\r3).
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