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Paul D.

asked • 10/07/18

Matrices question. PLSSSSS HELP.

4. Let n≥2, let A and B b en×n matrices and let On be the n×n matrix with every entry 0.

(b) Suppose that A2 = On. Show that In − A is invertible, and that (In − A)-1 = In + A.

(c) Suppose that Am = On for some positive integer m. Show that In − A is invertible. 

1 Expert Answer

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Andy C. answered • 10/08/18

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