... sau. 1 - miniIn7 =1 (1 + ad - 11 ,11 - nj=k+l (1 - ajl!)'neu ai E [ -1, 0), Vi= 1, 2, ,k;CF 1 2 • •n(H) =n7 =1 (1 + ad - 1, 1- n7 =1( 1- ai),n:=l(l +ad -n;=k+l(l- aj)neu ai E [ -1, 0), ... {:}b= -1- lal= -CF 1, 3.Do d6 (3.6) trO-thanhIhl*Neu ICF 1 , 21 >Ie ,t 1 CF 1 ,2+eVT = 1 - min{ICF 1 , 21, lei}a + b + e±ab 1- lelCF 1 ,3+b=0.V P= 1- min{ICF 1 , 31, Ibl}Khi ... khac,nguCF 1 ,2= -1, trrc la, theo M~nh de3 .1, ho~c a= -1 ho~cb= -1, khi do0<e =11 ;tirong tV',nguCF 1 ,2= 1 thi -1 =Ie<O. V~y Ia chiing taluonco 1- min{ICF 1 , 21, lei}>O.Do...