(a) How do you add complex numbers?(b) How do you multiply 13  5i2 12  i2 ?(c) Is 13  i2 13  i2 a real number?(d) How do you simplify the quotient 13  5i2/13  i2 ? 18. (a) How do you add complex numbers?(b) How do you multiply (3 + 5i)(2 – i)?(c) Is (3 – i)(3 + i) a real number?(d) How do you simplify the quotient (3 + 5i)/(3 – i)?

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Answered: 18. (a) How do you add complex numbers?…

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter1: Equations And Graphs

Section1.CR: Chapter Review

Problem 18CC

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(a) How do you add complex numbers?
(b) How do you multiply 13  5i2 12  i2 ?
(c) Is 13  i2 13  i2 a real number?
(d) How do you simplify the quotient 13  5i2/13  i2 ?

18. (a) How do you add complex numbers?
(b) How do you multiply (3 + 5i)(2 – i)?
(c) Is (3 – i)(3 + i) a real number?
(d) How do you simplify the quotient (3 + 5i)/(3 – i)?

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