Please, help me with this
Let A be a real, nXn, symmetric matrix for which there is some positive integer m such tha tA^m = I.
If m is odd, prove that A^m = I.
If m is even, what can you say about A? Give its Jordan form.
Thank you!
Please, help me with this
Let A be a real, nXn, symmetric matrix for which there is some positive integer m such tha tA^m = I.
If m is odd, prove that A^m = I.
If m is even, what can you say about A? Give its Jordan form.
Thank you!