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General
Easy

Question

The area under the curve y=open vertical bar c o s blank x minus s i n blank x close vertical bar comma 0 less or equal than x less or equal than fraction numerator pi over denominator 2 end fraction comma and above x-axis is:

  1. 2 square root of 2    
  2. 2 square root of 2 minus 2    
  3. 2 square root of 2 plus 2    
  4. 0    

The correct answer is: 2 square root of 2 minus 2



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