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  3. let a be a matrix with the following size a 4 x 3

Let A be a matrix with the following size A 4 x 3 If defined...

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Let A be a matrix with the following size A 4 x 3 If defined determine the size of the matrix 3A If an answer is undefined enter UNDEFINED X If not defined explain why O 3A is defined O 3A is not defined because the number of columns of A does not equal the number of rows of A O 3A is not defined because the number of columns of A equals 3 O 3A is not defined because the number of rows of A does not equal 3 O 3A is not defined because 3 is not a matrix

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