By the Cayley-Hamilton theorem, every square matrix satisfies its own:
ADeterminant equation
BCharacteristic equation
CTrace equation
DTranspose equation
Answer & Solution
Correct answer: B. Characteristic equation
Cayley-Hamilton: a matrix satisfies its own characteristic polynomial. If char poly is λ² + aλ + b = 0, then A² + aA + bI = 0.
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