Answer
(a) 3-4i
(b) 25
Work Step by Step
(a) The complex conjugate of $3+4i$ is $\overline{3+4i}$=___$3-4i$___.
(b) $(3+4i)(\overline{3+4i})$=___$3^{2}+4^{2}=9+16=25$___.
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: 3
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