3.利用范德蒙德行列式计算下列行列式:-|||-a^n ((a-1))^n ((a-n))^n-|||-^n-1 ((a-1))^n-1 ((a-n))^n-1
-a-|||-1 2 3 n-|||-1 1+2 3 n-|||-1 2 2+3 n =(n-1)!;-|||-1 2 3 (n-1)+n-|||-o
若α1,α2,α3,β1,β2都是四维列向量,且4阶行列式|α1,α2,α3,β1|=m,|α1,α2,β2,α3|=n,则4阶行列式|α3,α2,α1,(β1
2-|||-2 2 2 ...2-|||-4.计算n阶行列式 _(n)= 2 2 3 2-|||-...-|||-2 2 2 ... n
(2n-1)24... (2n);-|||-(6) ... (2n-1)(2n)(2n-2)... 2.-|||-3.写出四阶行列式中含有因子a11a 23的项
(2n-1)24... (2n) ;-|||-(6) ... (2n-1)(2n)(2n-2)... 2.-|||-3.写出四阶行列式中含有因子a11a23的项
(2n-1)24... (2n);-|||-(6) ... (2n-1)(2n)(2n-2)... 2.-|||-3.写出四阶行列式中含有因子a11a 23的项
|1 2 3 4-|||-4 3 2 1-|||-计算4阶行列式: 0 -1 2 3 __-|||-=-|||-1 6 3 2
0 n-|||--1 -2 -3 . -(n-1) 0-|||-__计算行列式
1-|||-1 a1 0 ····0-|||-计算 n+1 阶行列式 _(n+1)= 1 0 a2 ... 0 _(i)neq 0(i=1,2,... ,n).