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.
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
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
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