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1 2 4. Which of the following values of a makes 1 1 1 singular? 2 1 -1 (a) 2 (b) 4 (с) —2 (d) –4 5. A sequence of elementary row operations was applied to a matrix A to put it in an upper triangula

1 2 4. Which of the following values of a makes 1 1 1 singular? 2 1 -1 (a) 2 (b) 4 (с) —2 (d) –4 5. A sequence of elementary row operations was applied to a matrix A to put it in an upper triangula

Algebra and Trigonometry (6th Edition)
Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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1 2 4. Which of the following values of x makes 1 1 1 singular? 2 1 -1 (a) 2 (b) 4 (с) —2 (d) -4 5. A sequence of elementary row operations was applied to a matrix A to put it in an upper triangular form. The result is as follows: 1 2 -3 4 0 2 -2 5 E43(-1)E32(-2)E2(-2)E31(2)E21(-4)E134 = 0 0 4 -5 1 Which of the following is the determinant of A? (a) 2 (b) –2 (c) 4 (d) –4
Transcribed Image Text:1 2 4. Which of the following values of x makes 1 1 1 singular? 2 1 -1 (a) 2 (b) 4 (с) —2 (d) -4 5. A sequence of elementary row operations was applied to a matrix A to put it in an upper triangular form. The result is as follows: 1 2 -3 4 0 2 -2 5 E43(-1)E32(-2)E2(-2)E31(2)E21(-4)E134 = 0 0 4 -5 1 Which of the following is the determinant of A? (a) 2 (b) –2 (c) 4 (d) –4
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