Let A be an n × n matrix. Is it possible for A2+I = O in the case where n is odd? Answer the same question in the case where n is even.

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter6: Matrices And Determinants
Section: Chapter Questions
Problem 1CC
Question

Let A be an n × n matrix. Is it possible for A2+I =
O in the case where n is odd? Answer the same
question in the case where n is even.

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