Find all a so that A = α 1 -1 1 2 1 -1 1 is positive definite. 4

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter1: Equations And Inequalities
Section1.CT: Chapter Test
Problem 23CT: 23. Find k such that x2+(k+1)x+k+4=0 will have two equal roots.
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Find all a so that A =
α
1
-1
1
2
1
-1
1 is positive definite.
4
Transcribed Image Text:Find all a so that A = α 1 -1 1 2 1 -1 1 is positive definite. 4
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