Question 2. Suppose C* is group of all complex numbers except zero under multiplication, and R* is group of all real number except zero numbers under multiplication. 1. Explain why R* is a subgroup of C*. 2. What is the inverse of 3 + 4i in C*. Check your answer.

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter7: Real And Complex Numbers
Section7.3: De Moivre’s Theorem And Roots Of Complex Numbers
Problem 23E: Prove that the set of all complex numbers that have absolute value forms a group with respect to...
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Question 2. Suppose C* is group of all complex numbers except zero under
multiplication, and R* is group of all real number except zero numbers under
multiplication.
1. Explain why R* is a subgroup of C*.
2. What is the inverse of 3 + 4i in C*. Check your answer.
Transcribed Image Text:Question 2. Suppose C* is group of all complex numbers except zero under multiplication, and R* is group of all real number except zero numbers under multiplication. 1. Explain why R* is a subgroup of C*. 2. What is the inverse of 3 + 4i in C*. Check your answer.
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