Consider the following Gauss elimination: What is the determinant of A? det (A) = [1 0 01 A → 0 1 0 A → 0 0 1 E₁A→ 0 -3 0 E₂E₁A → 0 1 0 E3E2E1A= ⠀⠀⠀⠀⠀⠀⠀⠀⠀ 0 0 1 [1 0 -87 00 1 E₁ 0 01 0 1 E3 [1 0 0 0 0 -9 -1 [:' 0 0 -8 -8 0 67 5 4

Algebra and Trigonometry (6th Edition)
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ISBN:9780134463216
Author:Robert F. Blitzer
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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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Consider the following Gauss elimination:
What is the determinant of A?
det (A) =
[1 0 01
⠀⠀⠀⠀⠀⠀
0
0 A 0 0 1 E₁A →→
-3 0 E₂E₁A 0 1 0 E3E2E1A=
0 0 1
E3
[1 0 -8]
A → 0 1
0 0 1
E1
[100]
0 1 0
E₂
[1 0 0
00 -9
E
-1
0
0
-8
-8
0
67
5
4
Transcribed Image Text:Consider the following Gauss elimination: What is the determinant of A? det (A) = [1 0 01 ⠀⠀⠀⠀⠀⠀ 0 0 A 0 0 1 E₁A →→ -3 0 E₂E₁A 0 1 0 E3E2E1A= 0 0 1 E3 [1 0 -8] A → 0 1 0 0 1 E1 [100] 0 1 0 E₂ [1 0 0 00 -9 E -1 0 0 -8 -8 0 67 5 4
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