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Question
Find the order of the product matrix AB if
| (i) | (ii) | (iii) | (iv) | (v) | |
| Order of A | 3 × 3 | 4 × 3 | 4 × 2 | 4 × 5 | 1 × 1 |
| Order of B | 3 × 3 | 3 × 2 | 2 × 2 | 5 × 1 | 1 × 3 |
Solution
(i) Order of matrix AB = 3 × 3
(ii) Order of matrix AB = 4 × 2
(iii) Order of matrix AB = 4 × 2
(iv) Order of matrix AB = 4 × 1
(v) Order of matrix AB = 1 × 3
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