Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 8 - Section 8.1 - Complex Numbers - 8.1 Problem Set - Page 426: 70

Answer

$\frac{5}{13}+\frac{12}{13}i$

Work Step by Step

Step 1: $\frac{3+2i}{3-2i}\times\frac{3+2i}{3+2i}$ Step 2: $\frac{(3+2i)(3+2i)}{(3-2i)(3+2i)}$ Step 3: $\frac{3(3+2i)+2i(3+2i)}{3^{2}-(2i)^{2}}$ Step 4: $\frac{9+6i+6i+4i^{2}}{9-4i^{2}}$ Step 5: $\frac{9+12i+4(-1)}{9-4(-1)}$ Step 6: $\frac{9-4+12i}{13}$ Step 7: $\frac{5+12i}{13}$ Step 8: $\frac{5}{13}+\frac{12}{13}i$
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