Maths-
General
Easy

Question

If A is a square matrix of order n, then the value of |adj A| is-

  1. |A|n–1    
  2. |A|n    
  3. |A|n+1    
  4. |A|n+2    

The correct answer is: |A|n–1


    we are given that If A is a square matrix of order n and we are asked to find the value of |adj A|
    ∣ A d j space A ∣ space o f space a space s q u a r e space m a t r i x space o f space n to the power of t h space end exponent o r d e r comma space i s space g i v e n space b y space ∣ A ∣ blank to the power of n minus 1 end exponent space space space w h e r e space ∣ A ∣ space i s space d e t e r m i n a n t space o f space s q u a r e space m a t r i x space o f space A space o f space n to the power of t h end exponent space space space o r d e r.

    Therefore the correct option in choice 1

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