表达式8: left parenthesis, "A" Subscript, 1 , Baseline plus left parenthesis, "B" Subscript, 1 , Baseline minus "A" Subscript, 1 , Baseline , right parenthesis "t" , "A" Subscript, 2 , Baseline plus left parenthesis, "B" Subscript, 2 , Baseline minus "A" Subscript, 2 , Baseline , right parenthesis "t" , right parenthesisA1+B1−A1t,A2+B2−A2t
8
表达式9: left parenthesis, "B" Subscript, 1 , Baseline plus left parenthesis, "C" Subscript, 1 , Baseline minus "B" Subscript, 1 , Baseline , right parenthesis "t" , "B" Subscript, 2 , Baseline plus left parenthesis, "C" Subscript, 2 , Baseline minus "B" Subscript, 2 , Baseline , right parenthesis "t" , right parenthesisB1+C1−B1t,B2+C2−B2t
9
表达式10: left parenthesis, "h" Subscript, 3 , Baseline left parenthesis, "t" , right parenthesis , "k" Subscript, 3 , Baseline left parenthesis, "t" , right parenthesis , right parenthesish3t,k3t
10
表达式11: "h" Subscript, 3 , Baseline ( "x" ) equals left parenthesis, ( 1 minus "x" ) squared "A" Subscript, 1 , Baseline plus 2 "x" ( 1 minus "x" ) "B" Subscript, 1 , Baseline plus "x" squared "C" Subscript, 1 , Baseline , right parenthesis left brace, 0 less than "x" less than 1 , right braceh3(x)=(1−x)2A1+2x(1−x)B1+x2C10<x<1
11
表达式12: "k" Subscript, 3 , Baseline ( "x" ) equals left parenthesis, ( 1 minus "x" ) squared "A" Subscript, 2 , Baseline plus 2 "x" ( 1 minus "x" ) "B" Subscript, 2 , Baseline plus "x" squared "C" Subscript, 2 , Baseline , right parenthesis left brace, 0 less than "x" less than 1 , right bracek3(x)=(1−x)2A2+2x(1−x)B2+x2C20<x<1
