In Exercises 21 and 22, mark each statement True or False. Justify each answer.4 a. The echelon form of a matrix is unique. b. The pivot positions in a matrix depend on whether row interchanges are used in the row reduction process. c. Reducing a matrix to echelon form is called the forward phase of the row reduction process. d. Whenever a system has free variables, the solution set contains many solutions. e. A general solution of a system is an explicit description of all solutions of the system.
In Exercises 21 and 22, mark each statement True or False. Justify each answer.4 a. The echelon form of a matrix is unique. b. The pivot positions in a matrix depend on whether row interchanges are used in the row reduction process. c. Reducing a matrix to echelon form is called the forward phase of the row reduction process. d. Whenever a system has free variables, the solution set contains many solutions. e. A general solution of a system is an explicit description of all solutions of the system.
Calculus: Early Transcendentals
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ISBN:9781285741550
Author:James Stewart
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Chapter1: Functions And Models
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![In Exercises 21 and 22, mark each statement True or False. Justify
each answer.4](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6fe5be50-2d7d-43e9-bff4-3381dc968760%2F361ed678-cd5a-4f5b-8100-3e37a49677fb%2Fmmtcpi.png&w=3840&q=75)
Transcribed Image Text:In Exercises 21 and 22, mark each statement True or False. Justify
each answer.4
![a. The echelon form of a matrix is unique.
b. The pivot positions in a matrix depend on whether row
interchanges are used in the row reduction process.
c. Reducing a matrix to echelon form is called the forward
phase of the row reduction process.
d. Whenever a system has free variables, the solution set
contains many solutions.
e. A general solution of a system is an explicit description
of all solutions of the system.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6fe5be50-2d7d-43e9-bff4-3381dc968760%2F361ed678-cd5a-4f5b-8100-3e37a49677fb%2F7d206c8.png&w=3840&q=75)
Transcribed Image Text:a. The echelon form of a matrix is unique.
b. The pivot positions in a matrix depend on whether row
interchanges are used in the row reduction process.
c. Reducing a matrix to echelon form is called the forward
phase of the row reduction process.
d. Whenever a system has free variables, the solution set
contains many solutions.
e. A general solution of a system is an explicit description
of all solutions of the system.
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