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Size of the Product Matrix

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Let A be a 3 × 4 matrix. B be a 4 × 5 matrix, and C be a 4 × 4 matrix. Determine which of the following products are defined and find the size of those that are defined.

a) AB b)BA c) AC d) CA e) BC f) CB

keywords: multiplying, multiplication, matrices

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Matrices problem
let A be a 3 × 4 matrix. B be a 4 × 5 matrix, and C be a 4 × 4 matrix. ...

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