College Algebra (11th Edition)

Published by Pearson
ISBN 10: 0321671791
ISBN 13: 978-0-32167-179-0

Chapter 1 - Section 1.3 - Complex Numbers - 1.3 Exercises - Page 103: 16


Complex and pure imaginary.

Work Step by Step

Rewrite the radical, by splitting the $\sqrt{-1}$, which is equal to i. $\sqrt{-36}=\sqrt{-1}\times\sqrt{36}=6i$ The number is complex because it takes on the form a+bi, a=0, and b=6, where a and b are both real numbers. The number is also real because $b=0$.
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