Given a square matrix A, elementary row operations (or column operations) performed on A affect the value of JA| in the following ways: • Interchanging any two rows (or columns) of A will change the sign of |AJ. Multiplying a row (or column) of A by a constant real number k multiplies |A| by k. • Adding a multiple of a row (or column) of A to another row (or column) of A does not change the value of |AJ. For Exercise, demonstrate these three properties. [2 Given A = -3 7. -6 and B = [5 7. 5 a. Evaluate JA|- b. Evaluate |B|- c. How are A and B related and how are JA| and B| related?
Given a square matrix A, elementary row operations (or column operations) performed on A affect the value of JA| in the following ways: • Interchanging any two rows (or columns) of A will change the sign of |AJ. Multiplying a row (or column) of A by a constant real number k multiplies |A| by k. • Adding a multiple of a row (or column) of A to another row (or column) of A does not change the value of |AJ. For Exercise, demonstrate these three properties. [2 Given A = -3 7. -6 and B = [5 7. 5 a. Evaluate JA|- b. Evaluate |B|- c. How are A and B related and how are JA| and B| related?
Chapter7: Matrices And Determinants
Section7.1: Matrices And Systems Of Equations
Problem 3ECP: Identify the elementary row operation performed to obtain the new row-equivalent matrix....
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