3. Determine if the following statements are TRUE or FALSE. If the statement is FALSE, provide a counterexample. a. If each element of an n x n matrix is doubled, then the determinant of the matrix also doubles. b. Multiplying a row of an n x n matrix through by a scalar k has the same effect on the determinant as multiplying a column of the matrix through by k c. If A is an n x n matrix with real entries, then det(A3) cannot be negative d. The matrix is not invertible if and only if x = 0 or y = 0 e. If A and B are n x n matrices, then det(AB) = det(BA)

3. Determine if the following statements are TRUE or FALSE. If the statement is FALSE, provide a counterexample. a. If each element of an n x n matrix is doubled, then the determinant of the matrix also doubles. b. Multiplying a row of an n x n matrix through by a scalar k has the same effect on the determinant as multiplying a column of the matrix through by k c. If A is an n x n matrix with real entries, then det(A3) cannot be negative d. The matrix is not invertible if and only if x = 0 or y = 0 e. If A and B are n x n matrices, then det(AB) = det(BA)

Calculus For The Life Sciences

2nd Edition

ISBN:9780321964038

Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.

Chapter10: Matrices

Section10.CR: Chapter 10 Review

Problem 7CR

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