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Mathematics, 20.04.2021 07:20 cmaya
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If matrix D is a 7 x 4 matrix, and the product of matrix D and matrix E, DE, exists, what could be the order of matrix E?
1- 4 x 5
2- 4 x 7
3- 4 x 4
4- 7 x 4
5- 7 x 5
6- 7 x 7
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Answers: 2
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