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If all entries of A and A^−1 are integers, prove that detA = 1 or −1.

If all entries of A and A^−1 are integers, prove that detA = 1 or −1.
asked 226k views
4 votes
If all entries of A and A^−1 are integers, prove that detA = 1 or −1.

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User Youcantryreachingme
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1 Answer

6 votes
A^-1 is actually 457
answered
User Mario Fusco
by
8.6k points
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