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20 September, 02:05

The following represent matrices and the dimension of each is also stated below. A is a matrix of size 4X2 B is a matrix of size 3X5 C is a matrix of size 7X2 D is a matrix of size 5X4 E is a matrix of size 5X3

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  1. 20 September, 02:34
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    The questions does not look complete, we can complete the question thus

    The following represent matrices and the dimension of each is also stated below. A is a matrix of size 4X2 B is a matrix of size 3X5 C is a matrix of size 7X2 D is a matrix of size 5X4 E is a matrix of size 5X3.

    Which of the following matrices products are defined?

    Answer:

    EB is defined

    BE is defined

    BD is defined

    and DA is defined

    Step-by-step explanation:

    To know that the product of two matrices are defined, the column of the first matrix must be the same as the row of the second matrix.

    For example; for EB we have 5 columns for E and 5 rows for B. After this product is done it produces a matrix with dimension 3 x 3, which means 3 by 3 (3 rows by 3 columns)
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