D. (In this problem we show any square matrix is the sum of a symmetric matrix and a skew-symmetric matrix). Let A be a square matrix. From this define and C=(A-A¹). (a) Using general properties of the transpose, pg. 36, show B is symmetric, i.e. B = B. 1 B = (A + A¹) (b) Using general properties of the transpose, pg. 36, show C is skew-symmetric, i.e. Ct =-C. (c) Show B+C = A. (d) An example: for A = 1 2 34 compute B and C.
D. (In this problem we show any square matrix is the sum of a symmetric matrix and a skew-symmetric matrix). Let A be a square matrix. From this define and C=(A-A¹). (a) Using general properties of the transpose, pg. 36, show B is symmetric, i.e. B = B. 1 B = (A + A¹) (b) Using general properties of the transpose, pg. 36, show C is skew-symmetric, i.e. Ct =-C. (c) Show B+C = A. (d) An example: for A = 1 2 34 compute B and C.
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section3.1: Matrix Operations
Problem 20EQ: Referring to Exercise 19, suppose that the unit cost of distributing the products to stores is the...
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