Find |A-11. Begin by finding A-1, and then evaluate its determinant. Verify your result by finding |A| and then applying the formula from |A¯¹| = |A|· A = 667 1 0 1 9-15 9 20

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter4: Systems Of Linear Equations
Section4.6: Solve Systems Of Equations Using Determinants
Problem 4.94TI: Evaluate the determinant |322214103| , by expanding by minors along the first row.
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Find |A-11. Begin by finding A-1, and then evaluate its determinant. Verify your result by finding |A| and then applying the formula from |A¯¹| = |A|·
A =
667
1 0 1
9-15
9 20
Transcribed Image Text:Find |A-11. Begin by finding A-1, and then evaluate its determinant. Verify your result by finding |A| and then applying the formula from |A¯¹| = |A|· A = 667 1 0 1 9-15 9 20
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