If A = [aij] is a 2 × 2 matrix such that aij = i + 2j, write A.

Given: A = [aij] is a 2 × 2 matrix

…(i)


Given that aij = i + 2j


So, a11 = 1 + 2 × 1 = 1 + 2 = 3


a12 = 1 + 2 × 2 = 1 + 4 = 5


a21 = 2 + 2 × 1 = 2 + 2 = 4


a22 = 2 + 2 × 2 = 2 + 4 = 6


Putting the values in eq. (i), we get



1