行列式D=a11D1=4a12a11-3a12

已知三阶行列式D=123312231,则元素A12=2的代数余子式A12=.已知三阶行列式D=123312231,则元素A12=2的代数余子式A12=.已知三阶行列式D=123312231,则元素A1

若3阶行列式a11a12a13a21a22a23=1a31a32a33若3阶行列式a11a12a13a21a22a23=1a31a32a33则行列式4a115a11+3a12a134a215a21+3

线性代数题,2,设行列式D=【a11,a12,a13；a21,a22,a23；a31,a32,a33】=K,则D1=[a11,a12,1,设行列式D=【a11,a12,a13；a21,a22,a23；

设3阶行列式a11a12a13a21a22a23a31a32设3阶行列式a11a12a13a21a22a23a31a32a33=1,则4a115a11+3a12a134a215a21+3a22a234

线性代数行列式计算的一道题|a11a12a13||3a11-4a122a11a13||a21a22a23|=1,则|3a21-4a222a21a23|=|a31a32a33||3a31-4a322a3

线性代数,已知3阶行列式｜aij｜=｜1x3｜中元素a12的代数余子式A12＝8,求元素｜x20｜a21的代数余子式A21的值.｜5-14｜线性代数,已知3阶行列式｜aij｜=｜1x3｜中元素a12的

行列式|a11a12a13,a21a22a23,a31a32a33|=2,则3a113a123a13-3a21-3a22-3a23a31a32a33行列式|a11a12a13,a21a22a23,a3

3阶行列式102x314x5代数余子式A12=—1,则代数余子式A21=2吗?3阶行列式102x314x5代数余子式A12=—1,则代数余子式A21=2吗?3阶行列式102x314x5代数余子式A12

3阶行列式102x314x5代数余子式A12=—1,则代数余子式A21为3阶行列式102x314x5代数余子式A12=—1,则代数余子式A21为3阶行列式102x314x5代数余子式A12=—1,则代

D是五阶行列式,其中a12=0,则D按定义的展开式中等于零的项至少有多少个?D是五阶行列式,其中a12=0,则D按定义的展开式中等于零的项至少有多少个?D是五阶行列式,其中a12=0,则D按定义的展开

设行列式|a11a12#a21a22|=m|a13a11#a23a21|=n则行列式|a11a12+a13#a21a22+a23|等于?设行列式|a11a12#a21a22|=m|a13a11#a23

计算行列式D=?计算行列式D=?计算行列式D=?如果没有算错的话是160

1、求四列行列式D=1040;2-1-12;0-600;24-12的第四行各元素的代数余子式之和.2、设A1j（j=1,2,3,4,）为行列式D=abcd;dcbb;bbbb;cdad的第一行第j列元

行列式问题我能算出来a11-a12a21-a22=-1行列式问题我能算出来a11 -a12    a21 -a22 =-1行列式问

设Dn是一个N阶上三角行列式,代数余子式A12=?RT.设Dn是一个N阶上三角行列式,代数余子式A12=?RT.设Dn是一个N阶上三角行列式,代数余子式A12=?RT.0因为余子式第一列都是0

行列式计算a11a12a13a21a22a23a21a22a23=2求a11a12a13a31a32a33a31a32a33a11a12a13a21a22a23a31a32a33=2求a212a223

1.二阶行列式|R-12|≠0.那么R应该满足什么条件?|2R-1|2.如果行列式D=|a11a12a13|=M≠0D1=|2a112a122a13||a21a22a23||2a212a222a23|

四阶行列式展开问题三阶行列式D=|a11a12a13||a21a22a23||a31a32a33|它展开则是：a11a22a33+a12a23a31+a13a21a32-a11a23a32-a12a2

四阶行列式的展开三阶行列式D=|a11a12a13||a21a22a23||a31a32a33|它展开则是：a11a22a33+a12a23a31+a13a21a32-a11a23a32-a12a21

已知3阶行列式a11a12a13,a21a22a23,a31a32a33=2,算a11a12a13,10a2110a2210a23,a31a32a33的值1-2-1已知3阶行列式a11a12a13,a