网址:http://m.1010jiajiao.com/timu3_id_510983[举报]
A.-2 B.-1 C.1 D.2
设(x2+1)(2x+1)9=a0+a1(x+2)+a2(x+2)2+…+a11(x+2)11,则a0+a1+a2+…+a11的值为
A.-2 B.-1 C.1 D.2
A.2
B.-1
C.1
D.-2
设(x2+1)(2x+1)9=a0+a1(x+2)+a2(x+2)2+…+a11(x+2)11,则a0+a1+a2+…+a11的值为( )
A.-2 B.-1
C.1 D.2
A.-2
D.2