Find |A-11. Begin by finding A-1, and then evaluate its determinant. Verify your result by finding |A| and then applying the formula |A-1| = A = |A=1| =

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 4.96TI: Evaluate the determinant |213122440| by expanding by minors.
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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 |A-1| :
|A|
1 2
A =
7 4
|A-1| =
Transcribed Image Text:1 Find |A-11. Begin by finding A-1, and then evaluate its determinant. Verify your result by finding |A| and then applying the formula |A-1| : |A| 1 2 A = 7 4 |A-1| =
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