Concept explainers
(a)
The statement is true or false. If it is true give an example. If false give a counter example.
(a)
Answer to Problem 77E
False
Explanation of Solution
Given: The sum of two imaginary numbers is imaginary numbers.
The statement is false
The sum of two imaginary numbers is real numbers not imaginary numbers.
For example
Sum:
Hence, the statement is false.
(b)
The statement is true or false. If it is true give an example. If false give a counter example.
(b)
Answer to Problem 77E
True
Explanation of Solution
Given: The product of two pure imaginary numbers is real numbers.
The statement is true
The product of two pure imaginary numbers is real numbers.
For example
Product:
Hence, the statement is true.
(c)
The statement is true or false. If it is true give an example. If false give a counter example.
(c)
Answer to Problem 77E
True
Explanation of Solution
Given: The pure imaginary numbers is imaginary numbers.
The statement is true
The pure imaginary numbers is imaginary numbers.
For example
Hence, the statement is true.
(d)
The statement is true or false. If it is true give an example. If false give a counter example.
(d)
Answer to Problem 77E
False
Explanation of Solution
Given: A
The statement is false
A complex number is a not real number
For example
Which is a complex number as it is in the form of
Hence, the statement is false.
Chapter 3 Solutions
Big Ideas Math A Bridge To Success Algebra 2: Student Edition 2015
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