Question

If [1 2 3] A = [4 5], the order of matrix A is

• A. 3 x 2
• B. 3 x 1
• C. 2 x 3
• D. 2 x 1

Answer 1

The correct option is A

3 x 2

Order of [1 2 3] = 1 $\times$ 3

Order of [4 5] = 1 $\times$ 2

$\therefore$ Order of A is 3 $\times$ 2