∵(x+1) 5=[2+(x-1)] 5=
C 05 •2 5+
C 15 •2 4(x-1)+
C 25 •2 3•(x-1) 2+
C 35 •2 2(x-1) 3+
C 45 •2•(X-1) 4+
C 55 •(x-1) 5,
而且 (x+1 ) 5 = a 0 + a 1 (x-1)+ a 2 (x-1 ) 2 +…+ a 5 (x-1 ) 5 ,
故 a 0=
C 55 •2 5=32,
故选B.
∵(x+1) 5=[2+(x-1)] 5=
C 05 •2 5+
C 15 •2 4(x-1)+
C 25 •2 3•(x-1) 2+
C 35 •2 2(x-1) 3+
C 45 •2•(X-1) 4+
C 55 •(x-1) 5,
而且 (x+1 ) 5 = a 0 + a 1 (x-1)+ a 2 (x-1 ) 2 +…+ a 5 (x-1 ) 5 ,
故 a 0=
C 55 •2 5=32,
故选B.