Show that if A is a square matrix that satisfies the equation 2 A²-A-I-O, then its inverse is A-¹ = 2 A-I. The equation 24² - A - I = O implies that ---Select--- It follows that ---Select-- v Notice the last equation means that ---Select--- multiplied with A is the identity, which is what we wanted to prove.

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter7: Systems Of Equations And Inequalities
Section7.7: Solving Systems With Inverses
Problem 5SE: Can a matrix with zeros on the diagonal have an inverse? If so, find an example. If not, prove why...
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Show that if A is square matrix that satisfies the equation 2 A² - A - I = O, then its inverse is A-¹ = 2 A-I.
The equation 24² - A - I = O implies that ---Select---
✓. It follows that ---Select---
✓. Notice the last equation means that ---Select--- multiplied with A is the identity, which is what we wanted to prove.
Transcribed Image Text:Show that if A is square matrix that satisfies the equation 2 A² - A - I = O, then its inverse is A-¹ = 2 A-I. The equation 24² - A - I = O implies that ---Select--- ✓. It follows that ---Select--- ✓. Notice the last equation means that ---Select--- multiplied with A is the identity, which is what we wanted to prove.
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