Elementary Linear Algebra 7th Edition

Published by Cengage Learning
ISBN 10: 1-13311-087-8
ISBN 13: 978-1-13311-087-3

Chapter 4 - Vector Spaces - 4.2 Vector Spaces - 4.2 Exercises - Page 160: 35

Answer

a) It is a vector space. b) It is not a vector space. c) It is not a vector space.

Work Step by Step

a) It is a vector space. b) It is not a vector space because the addition is not commutative. c) It is not a vector space because the scalar multiplication is not defined for negative scalars.
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