Question

If a matrix has 8 elements, what are the possible order it can have?

विकल्प

• 1 × 8

• 8 × 1

• 4 × 20

• All of these

Answer 1

All of these

Explanation:

We know that if a matrix has mn elements, it is of order m × n. To find all possible orders of an 8 element matrix, we will find all order pairs of natural numbers whose product is 8.

Thus, all possible ordered pairs are (1, 8), (8, 1), (4, 2), (2, 4).

Hence, possible orders are 1 × 8, 8 × 1, 4 × 2, 2 × 4