The non-homogeneous system of linear equations in matrix form AX = B in ‘n’ unknowns has a unique solution if,

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The non-homogeneous system of linear equations in matrix form AX = B in ‘n’ unknowns has a unique solution if

Arank A=n

Brank [AB] =n

Crank A = rank [AB]

Drank A= rank [AB] =n

Answer:

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