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# Matrices

Suppose $$A$$ and $$B$$ are two non singular matrices such that $$B$$ is not an identity matrix. If $$A^6$$ is an identity matrix and $$AB^2 = BA$$. Find the least positive integral value of k such that $$B^K$$ is an Identity matrix............. I got one answer as 63 but could not prove that it's the least...

Note by Abhimanyu Swami
2 years ago

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Answer is 11 · 1 year, 6 months ago

How? · 1 year, 6 months ago

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