ISRO Mechanical & Aerospace 2013 - Question 49

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The Matrix [[0, -4, 1], [4, 0, -5], [-1, 5, 0]] is

  • A. Orthogonal Matrix
  • B. Skew Symmetric
  • C. Symmetric
  • D. Idempotent

Answer: B. Skew Symmetric

Explanation: A^T = -A. Diagonal elements are zero and a_ij = -a_ji.

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