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: 78

Answer

$12i$

Work Step by Step

Multiply the numerator and denominator by the conjugate of the complex imaginary number. $\frac{12i}{-i}\times\frac{i}{i}$ Expand. $\frac{12i}{-i^2}$ Remember that $i^2=-1$. $\frac{12i}{1}$ Simplify. $12i$
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