College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 2 - Functions and Graphs - Exercise Set 2.8 - Page 320: 88

Answer

Does not make sense

Work Step by Step

This does not make sense because in this equation r$^2$ should equal -4 but the square root of a negative number is not a real number.
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