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Compute the Indicated Products `[(1, -2),(2,3)][(1,2,3),(2,3,1)]` - CBSE (Commerce) Class 12 - Mathematics

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Question

Compute the indicated products

`[(1, -2),(2,3)][(1,2,3),(2,3,1)]`

Solution

`[(1, -2),(2,3)][(1,2,3),(2,3,1)]`

`=[(1(1)-2(2), 1(2)-2(3), 1(3)-2(1)), (2(1)+3(2), 2(2)+3(3), 2(3)+3(1))]`

`= [(1-4, 2-6, 3-2),(2+6, 4+9, 6+3)] = [(-3, -4, 1),(8 ,13,9)]`

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Solution Compute the Indicated Products `[(1, -2),(2,3)][(1,2,3),(2,3,1)]` Concept: Operations on Matrices - Multiplication of Matrices.
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