imo class 12 determinants

The adjoint of matrix [2 3; 1 5] is:

VAVidaara Admin Asked 6d ago 0 views 0 answers

The adjoint of matrix [2 3; 1 5] is:

  • A. [5 −3; −1 2]
  • B. [5 3; 1 2]
  • C. [2 −3; −1 5]
  • D. [5 −1; −3 2]

Answer: A) [5 −3; −1 2]

Explanation: adj = [d −b; −c a] = [5 −3; −1 2].

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