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GATE 2020
Engineering MathematicsLinear AlgebramediumMCQ2 marks
Let A and B be two n x n matrices over real numbers. Let rank(M) and det(M) denote the rank and determinant of a matrix M, respectively. Consider the following statements: I. rank(AB) = rank(A) * rank(B) II. det(AB) = det(A) * det(B) III. rank(A + B) <= rank(A) + rank(B) IV. det(A + B) <= det(A) + det(B) Which of the above statements are TRUE?
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