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
- Pls help.arrow_forwardSolve the system of equation for y using Cramer's rule. Hint: The determinant of the coefficient matrix is -23. - 5x + y − z = −7 2x-y-2z = 6 3x+2z-7arrow_forwarderic pez Xte in z= Therefore, we have (x, y, z)=(3.0000, 83.6.1 Exercise Gauss-Seidel iteration with Start with (x, y, z) = (0, 0, 0). Use the convergent Jacobi i Tol=10 to solve the following systems: 1. 5x-y+z = 10 2x-8y-z=11 -x+y+4z=3 iteration (x Assi 2 Assi 3. 4. x-5y-z=-8 4x-y- z=13 2x - y-6z=-2 4x y + z = 7 4x-8y + z = -21 -2x+ y +5z = 15 4x + y - z=13 2x - y-6z=-2 x-5y- z=-8 realme Shot on realme C30 2025.01.31 22:35 farrow_forward
- Use Pascal's triangle to expand the binomial (6m+2)^2arrow_forwardListen A falling object travels a distance given by the formula d = 6t + 9t2 where d is in feet and t is the time in seconds. How many seconds will it take for the object to travel 112 feet? Round answer to 2 decimal places. (Write the number, not the units). Your Answer:arrow_forwardSolve by the quadratic formula or completing the square to obtain exact solutions. 2 e 104 OA) -16±3√6 B) 8±√10 O c) -8±√10 OD) 8±3√√6 Uarrow_forward
- Algebra and Trigonometry (6th Edition)AlgebraISBN:9780134463216Author:Robert F. BlitzerPublisher:PEARSONContemporary Abstract AlgebraAlgebraISBN:9781305657960Author:Joseph GallianPublisher:Cengage LearningLinear Algebra: A Modern IntroductionAlgebraISBN:9781285463247Author:David PoolePublisher:Cengage Learning
- Algebra And Trigonometry (11th Edition)AlgebraISBN:9780135163078Author:Michael SullivanPublisher:PEARSONIntroduction to Linear Algebra, Fifth EditionAlgebraISBN:9780980232776Author:Gilbert StrangPublisher:Wellesley-Cambridge PressCollege Algebra (Collegiate Math)AlgebraISBN:9780077836344Author:Julie Miller, Donna GerkenPublisher:McGraw-Hill Education