Help on query formulation
On the calculation of determinants. (Asupra calculului unor determinanĊ£i.) (Romanian. English summary)
Gaz. Mat., Ser. B 120, No. 3, 116-117 (2015).
Summary: This short note shows a way to tackle determinants of the form $\det(A^2\pm AB+B^2)$, where $A$ and $B$ are commuting matrices of order 3.
Classification: H60
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