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📐 Mathematics  ·  Determinants  ·  JEE

The Cayley-Hamilton theorem states that every square matrix satisfies:

Answer: Its own characteristic polynomial.

  • A Its own characteristic polynomial
  • B Its minimal polynomial only
  • C A<sup>n</sup> = I
  • D det(A) = trace(A)

Correct answer: A. Its own characteristic polynomial

Explanation: Cayley-Hamilton: every n x n matrix A satisfies p(A) = 0, where p(lambda) = det(lambda*I - A) is its characteristic polynomial.

Concept context

Evaluation of determinants, cofactors, adjoint, inverse of matrix, Cramer's rule and area applications. Always in board and JEE.

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