1.

If A and B are two matrices of order 3 × m and 3 × n respectively and m = n, then the order of 5A − 2B is(a) m × 3(b) 3 × 3(c) m × n(d) 3 × n

Answer» If A and B are two matrices of order 3 × m and 3 × n respectively and m = n, then the order of 5A − 2B is



(a) m × 3

(b) 3 × 3

(c) m × n

(d) 3 × n


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