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The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, whenever these products exist.

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The sizes of two matrices A and B are given. Find the sizes of the product AB and the product BA, whenever these products exist. A is 4 x2, and B is 5 x4. . . . Find the size of the product AB. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice. O A. The size of product AB is X O B. The product AB does not exist. Find the size of the product BA. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice O A. The size of product BA is X O B. The product BA does not exist

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