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Question

Let A = open square brackets table row 5 cell 5 alpha end cell alpha row 0 alpha cell 5 alpha end cell row 0 0 5 end table close square brackets If |A2| = 25, then |alpha| equals

  1. 52    
  2. 1    
  3. 1/5    
  4. 5    

The correct answer is: 1/5

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