海明码 计算若海明码的监督关系为:S0=a0+a3+a4+a6 ;S1=a1+a3+a5+a6 ;S2=a2+a4+a5
A1+A3+A5+A7=4,求A2+A4+A6
等比数列an中,a1+a2+a3+a4+a5=31,a2+a3+a4+a5+a6=62,则通项公式为?
等差数列a1+a2+a3+a4=24 a5+a6+a7+a8=56求1/S1+1/S2+.1/Sn
a1=8,a7=5832,a1/a2=a2/a3=a3/a4=a4/a5=a5/a6=a6/a7,求a5的值
若集合A={a1,a2,a3,a4,a5,a6},B={a1^2,a2^2,a3^2,a4^2,a5^2,a6^2},其
a2*a6=4,求a1*a2*a3*a4*a5*a6*a7
等比数列,a1+a2+a3=6,a2+a3+a4=3,求a3+a4+a5+a6+a7+a8=?
a3*a4*a5=8 求a2*a3*a4*a5*a6
等差数列an中a1+a2=39 a3+a4=33则a5+a6的值
an=(-1)的n次方+1,求a1+a2+a3+a4+a5+a6+a7+a8
已知集合A={a1,a2,a3,a4,a5,a6,a7},A并上B={a1,a2,a3,a4,a5,a6,a7,.,a1
等比数列{an}各项均为正数,a1+a2+a3+a4+a5+a6=1,1/a1+1/a2+1/a3+1/a4+1/a5+