College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 1, Equations and Graphs - Section 1.5 - Complex Numbers - 1.5 Exercises - Page 130: 6

Answer

Yes.

Work Step by Step

Yes, a complex number and its conjugate sum to a real number. If the complex number is $a+bi$, then the conjugate is $a-bi$ and the sum is: $a+bi+a-bi=2a$ Which is a real number.
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