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Question

The sum of the products of the elements of any row of a determinant A with the same row is always equal to

  1. 1    
  2. 0    
  3. |A|    
  4. fraction numerator 1 over denominator 2 end fraction vertical line A vertical line    

The correct answer is: |A|


    We know that the row to row multiplication of a determinant is always equal to the value of the determinant i.e., | A|.

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