Let be of order and be of order

MATHEMATICS · Single correct · CBSE · Mathematics · Matrices · Matrices

Problem

Let AA be of order 2×52\times 5 and BB be of order 5×35\times 3. Which one of the following statements is correct? (a) Only BABA is defined and its order is 3×53\times 5.},{ (b) Neither ABAB nor BABA is defined. (c) Only ABAB is defined and its order is 2×32\times 3. (d) Both ABAB and BABA are defined; ABAB is 2×52\times 5 and BABA is 5×35\times 3.}],

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