Given that A is transformed into U by the elementary row operations below, complete E¹ and ₂¹. A= E¹ = -7 -21 21 1 -9 3 -25 15 27 -15 Ex: 42 1 3R₁+R3 R3 1 -7 -9 3 -21 -25 0 0 E₂¹ = 15 -6 1 -3R₁+R₂ R₂ 1 -7 -9 3 0 ?!! 2 6 = 0 0 -6 1

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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Given that A is transformed into U by the elementary row operations below, complete El and Er'.
-7 -9 3
-21 -25
15
21
27 -15
E
A
=
1
Ex: 42
1
3R1+R3 R3
-7
-21
0
-9 3
-25
15
0
-6
=
1
-3R1+R2 R2
1
-7 -9
0
2
0 0 -6
11-
3
1
6 1
이
Transcribed Image Text:Given that A is transformed into U by the elementary row operations below, complete El and Er'. -7 -9 3 -21 -25 15 21 27 -15 E A = 1 Ex: 42 1 3R1+R3 R3 -7 -21 0 -9 3 -25 15 0 -6 = 1 -3R1+R2 R2 1 -7 -9 0 2 0 0 -6 11- 3 1 6 1 이
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