a1*a2*a3*a4=1,a13*a14*a15*a16=8,求a41*a42*a43*a44大虾们帮帮忙
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a1*a2*a3*a4=1,a13*a14*a15*a16=8,求a41*a42*a43*a44大虾们帮帮忙a1*a2*a3*a4=1,a13*a14*a15*a16=8,求a41*a42*a43*a
a1*a2*a3*a4=1,a13*a14*a15*a16=8,求a41*a42*a43*a44大虾们帮帮忙
a1*a2*a3*a4=1,a13*a14*a15*a16=8,求a41*a42*a43*a44
大虾们帮帮忙
a1*a2*a3*a4=1,a13*a14*a15*a16=8,求a41*a42*a43*a44大虾们帮帮忙
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a1*a2*a3*a4=1,a13*a14*a15*a16=8,求a41*a42*a43*a44大虾们帮帮忙
线代证明题证明:设有向量组a1,a2,a3,a4,若R(a1,a2,a3,a4)>R(a1,a2,a3)则必有R(a1,a2,a3,a4)=R(a1,a2,a3)+1
已知数列a1,a2,a3...an为等差数列,公差为d,b1=a1+a2,b2=a3+a4,b7=a13+a14,b1b2b3..b7是等差数列吗
计算 n+1阶行列式,Dn+1=[x a1 a2 a3...an;a1 x a2 a3...an;a1 a2 x a3...an;............a1 a2 a3 a4 ...x]
(a1+a3+a9)/(a2+a4+a10)=?
等差数列中a1+a2+a3+a4+a5=3,a1*a1+a2*a2+a3*a3+a4*a4+a5*a5=12求a1-a2+a3-a4+a5
等差数列an中a1+a2+a3=32,a11+a12+a13=118.a4+a10为多少
在等比数列{an}中,a1+a2+a3=8,a4+a5+a6=-4,求a13+a14+a15及s15
已知等差数列{an}中.a1+a2+a3+a4=10,a13+a14+a15+a16=70,求s16
在等比数列{an}中,a1+a2+a3=8,a4+a5+a6=-4,求a13+a14+a15及s15
等比数列an中,a1+a2+a3=3,a4+a5+a6=9,则a13+a14+a15等于
已知数列a1,a2,a3,a4,.,an是等差数列,且a1-a5+a9-a13+a17=117,求a3+a15的值
a1、a2、a3、a4为列向量若|a1 a2 a3|=3,|a4 a2 a1|=2,则|a1+a4+a3 a1 a2|=
已知R(a1,a2,a3)=3,R(a1,a2,a3,a4)=3,R(a2,a3,a4)=2.证明:1)a4能由a2,a3,线性表示;2)a1不能由a2,a3,a4表示.
已知,a1+a2=1,a2+a3=2,a3+a4=3...a100+a1=100那么a1+a2+a3+a4...+a100=
在等比数列{an}中a1*a2*a3*a4=1 a13*a14*a15*a16=8 求 a41*a42*a43*a44=?
在等比数列{an}中a1*a2*a3*a4=1 a13*a14*a15*a16=8 求 a41*a42*a43*a44=?
等比数列{a},若a1+a2+a3+a4=15/8,则1/a1+1/a2+1/a3+1/a4=?