... – 2, 09)= 1 /2 x [29 + (-10 x 2, 09 + 51)] x 0,11= 1 /2 x (29 + 30,1) x 0,11= 3 ,25 - ∆ PS = - { 1 /2 x (AE + QS(P =2, 09)) x (2, 2 – 2, 09)= - {1 /2 x [35 + (5 x 2, 09 +24 )] x 0,11= - [1 /2 x (35 + 34,45) ... 0,11)] = -3, 82- Chính phủ:∆ CP = 1 /2 x (2, 2 – 2, 09) x (QS(P =2, 09) – QD(P =2, 09)) = 1 /2 x 0,11 x (34,45 – 30,1) = 0 ,23 9- ∆ NW = ∆ CS + ∆ PS + ∆ CP = 3 ,25 -3, 82 + 0 ,23 9 = -0,336. Giữa vi c đánh ... thang ABCDSABCD = 1 /2 x (AB + CD) x ADTrong đó :AD = 2, 2 – 1,93 = 0 ,27 AB = QD(P =2, 2) = -10 x 2, 2 +51 = 29 CD = QD(P=1,93) = -10 x 1,93 + 51 = 31,7 SABCD = 1 /2 x (29 + 31,7) x 0 ,27 = 8,195 ∆ CS...