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Suppose A is a 4 X 6 matrix (and I, is the # X n identity matrix). For what value(s) of a is it true

Suppose A is a 4 X 6 matrix (and I, is the # X n identity matrix). For what value(s) of a is it true that LA = A? 1 =4 R = 4 and # = 6 Any positive integer value of a wil work. D There are no values of a for which this is true

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