Question

解矩阵方程…2 5 4 -6X = 1 3 2 1

Answer 1

2*a11+5*a21=4

2*a12+5*a22=-6

a11+3*a21=2

a12+3*a22=1

解得a21=0 a11=2

a22=8 a12=-23

X = 2 -23

0 8