... + 3.H - 3.(D - 1) ³ 0 (C) (A) (B) H .1. 11e (A) (B) (C) H .1. 11f Hãû BHTT (A) (B) H .1. 11g (C) (B) (A) (C) H .1. 11a H .1. 11b (A) (B) (C) H .1. 11 c (A) ... 3.H - 3.(D - 1) ³ 0 (C) (A) (B) H .1. 11e (B) (A) (C) H .1. 11a H .1. 11b (A) (B) (C) H .1. 11c (A) (B) (C) (C) (A) (B) H .1. 11d (A) (B) (C) H .1. 11f ... khồùp (1, 2 ồớ xa vọ cuỡng), (2,3), (3 ,1) . Ba khồùp naỡy thúng haỡng (H .1. 13m). Vỏỷy hóỷ õaợ cho laỡ BHTT. 1 2 3 4567 8 10 9ABH .1. 13l (1, 2) đ Ơ(I)(II)(III) (3 ,1) (2,3)H .1. 13m...