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If a matrix A is of the order $m$ x $n$. Then what is the order of the matrix kA, where k is a scalar constant?

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ANSWER: Same as the matrix A  ($m$ x $n$). If a matrix is multiplied by a scalar constant, the resulting matrix has the same order, as only the individual elements of the matrix change, not its structure.
answered Mar 9, 2013 by balaji.thirumalai