若(x+1)5-x5=a0+a1(x+1)4x+a2(x+1)3x2+a3(x+
题型:选择题
问题:
若(x+1)5-x5=a0+a1(x+1)4x+a2(x+1)3x2+a3(x+1)2x3+a4(x+1)x4其中ai(i=0,1,…,4)为常数,则a1+a3=( )
A.-15
B.15
C.45
D.-45
若(x+1)5-x5=a0+a1(x+1)4x+a2(x+1)3x2+a3(x+1)2x3+a4(x+1)x4其中ai(i=0,1,…,4)为常数,则a1+a3=( )
A.-15
B.15
C.45
D.-45