imo class 12 determinants

For the matrix A = [1 2; 3 4], the product A(adj A) equals:

VAVidaara Admin Asked 6d ago 0 views 0 answers

For the matrix A = [1 2; 3 4], the product A(adj A) equals:

  • A. |A| I
  • B. 0
  • C. I
  • D. adj A

Answer: A) |A| I

Explanation: Property: A(adj A) = |A| I.

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