表达式5: "X" left parenthesis, "t" , right parenthesis equals "x" Subscript, 1 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 2 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 3 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 4 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 5 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 6 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 7 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 8 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 9 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 10 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 11 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 12 , Baseline left parenthesis, "t" , right parenthesis plus "x" Subscript, 111 , Baseline left parenthesis, "t" , right parenthesis plus 78.5Xt=x1t+x2t+x3t+x4t+x5t+x6t+x7t+x8t+x9t+x10t+x11t+x12t+x111t+78.5
5
表达式6: "Y" left parenthesis, "t" , right parenthesis equals "y" Subscript, 1 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 2 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 3 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 4 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 5 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 6 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 7 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 8 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 9 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 10 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 11 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 12 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 13 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 99 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 100 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 101 , Baseline left parenthesis, "t" , right parenthesis plus "y" Subscript, 102 , Baseline left parenthesis, "t" , right parenthesis plus 21.5Yt=y1t+y2t+y3t+y4t+y5t+y6t+y7t+y8t+y9t+y10t+y11t+y12t+y13t+y99t+y100t+y101t+y102t+21.5
