How can i show that the matrix inverse exists for A^2 - 3A + I = 0

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- May 12th 2008, 11:54 PMah-beeMatrix Inverse
How can i show that the matrix inverse exists for A^2 - 3A + I = 0

- May 13th 2008, 12:41 AMDr Zoidburg
assuming that A is invertible rearrange the equation to make

*I*the subject:

multiply by

- May 13th 2008, 12:54 AMah-bee
umm.. show that it exists.. not find what it is if it exists

- May 13th 2008, 02:44 AMIsomorphism