imo class 12 determinants

What is the determinant of a skew-symmetric matrix of odd order?

VAVidaara Admin Asked 6d ago 0 views 0 answers

What is the determinant of a skew-symmetric matrix of odd order?

  • A. 1
  • B. -1
  • C. 0
  • D. Depends on elements

Answer: C) 0

Explanation: For a skew-symmetric matrix A, Aᵀ = −A. If order n is odd, |Aᵀ| = |−A| = (−1)ⁿ|A| = −|A|. Thus 2|A| = 0, giving |A| = 0.

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