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Matrices & Determinants: Nilpotent math, math for math: possible det?

2×2 determinants, Cramer's rule peek.

Try the problem

Nilpotent N≠0N\ne0, N2=0N^2=0 for 2×22\times2: possible det?

Hint and answer

Concept to use

Inverse 2×2.

Hint

Always singular.

Answer

0

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