1.求S11乘积 S,(⊙)S(5=1-S2(⊙)S2C3) -6 H 。1-Hn)+(ys 1+(-少s2” 令K=(1-Hn) ss(s=0-1.)1+ys 1+（-1”s2m S(5)S5)=K2B)B5) B⊙B(s1. 求S11乘积 ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) ( ) n n n n n n n n s H s s H G s S s S s S s S s 2 2 2 2 11 11 21 21 1 1 1 1 1 1 1 1 1 + - - + - = + - = - - = - - = - - 令 ( ) n K Hn 2 1 = 1- ( ) ( ) ( ) ( ) ( ) ( ) ( ) n n n n n n n n n s s K s K s S s S s H 2 2 2 2 2 2 11 11 1 1 1 1 1 1 1 1 1 + - + - ¢ = + - ÷ ø ö ç è æ + - - = - ( ) ( ) ( ) ( ) B ( ) s B ( s) B s B s S s S s K n n n n n - ¢ - ¢ - = 2 11 11