Question

Construct a 2x2 matrix A = [aij ] such that aij = (i−2j) 3

Answer 1

Answer:

2×2 matrix = [ a11 a12]

[ a21 a22]

So now we solve aij ,

a11 = (1 - 2×1)×3 here, i = 1, j = 1;

= - 3

Similarly solving a12, a21, a22 we get

a12 = -9 ; a21 = 0 ; a22 = -6 ;

So the matrix is

[ -3 -9 ]

[ 0 -6 ]