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y=2 x=1.2 F= x2y x2 = F = m=2.1 e=5.1 2e-m = B= 2e-m 2e = B = 2 b=3 c=3.27 a=10.1 √bc-9 = E= a-√bc-9 bc-9 = bc = E = u=0.1 i =0.02 e=0.4 u+i = L= 9e 9e = L = u+i e=1.02 i=0.52 u=1 L= 2e u+2i = 2e = 2i = L = u+2i a=3.6 b=5.2 c=6.2 L= a+b a+b = c-4 = L = c-4 a=1.2 b=1.1 c=1.5 M= a+3b a+3b = 3c-4= 3b = 3c = 3c-4 M= t=11 a=9 w=13 D= t×a +w= 10 t×a = t×a = ( 10 D= t×a 10 +w ) ×25 t=11 a=9 w=13 D= t×a +w= 10 t+a = t+a = ( 10 D= t+a 10 +w ) ×25 t=10 a=5 w=13 D= 2 2 ( t×a +w 10 t×a +w= 10 ( t+a = t+a = 10 t+a 10 ) = +w ) +25 D= |