imo class 12 matrices

A square matrix A = [a(i,j)] is called skew-symmetric if:

VAVidaara Admin Asked 6d ago 0 views 0 answers

A square matrix A = [a(i,j)] is called skew-symmetric if:

  • A. A' = A
  • B. A' = −A
  • C. a(i,j) = a(i,j) for all i, j
  • D. All diagonal elements are 1

Answer: B) A' = −A

Explanation: A skew-symmetric matrix satisfies A' = −A, which implies a(i,j) = −a(j,i) for all i and j.

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