Question

Write all the possible matrices of order 2x2 with each entry 1,2 or 3

Answer 1

2x2=4

So, we have the following;

1x4=4

2x2=4

3 is not possible although.

Answer 2

Answer:

no of matrix of order 2*2 with entry 1,2,3 is 3*3*3*3=81