Question: 4. Let A be an m X 11 matrix such that rank(A) = 1'. Show that there exists matices, B an m x 7' matrix,

4. Let A be an m X 11 matrix such that rank(A) =
4. Let A be an m X 11 matrix such that rank(A) = 1'. Show that there exists matices, B an m x 7' matrix, and C an r x n matrix, such that A = BC

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