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    Maths-
    General
    Easy

    Question

    If A is a singular matrix, then adj A is :

    1. singular    
    2. non-singular    
    3. symmetric    
    4. not defined    

    The correct answer is: singular

      If A is a singular matrix rightwards double arrow It means |A| = O
      Then |adj. A| = |A|n–1
      so (adj. A) is also singular matrix

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