Exercise 2. Suppose that A and B are matrices of the same size. Prove the following: (a) (aA)¹ = aAª for all scalars a; (b) (A+B)T = AT + BT.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section3.6: Introduction To Linear Transformations
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Exercise 2. Suppose that A and B are matrices of the same size. Prove the following:
(a) (aA)¹ = aAª for all scalars a;
(b) (A+B)T = AT + BT.
Transcribed Image Text:Exercise 2. Suppose that A and B are matrices of the same size. Prove the following: (a) (aA)¹ = aAª for all scalars a; (b) (A+B)T = AT + BT.
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