Is there a real, $(2 \times 2)$-Matrix $A$, distinct from the multiplicative identity $I_{2}$, such that $A^{5} = I_{2}$? If there is such a matrix, I know its determinant must be 1.
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Is there a real, $(2 \times 2)$-Matrix $A$, distinct from the multiplicative identity $I_{2}$, such that $A^{5} = I_{2}$? If there is such a matrix, I know its determinant must be 1.
from Hot Questions - Stack Exchange OnStackOverflow
via Blogspot
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