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General
Easy

Question

The interval of increase of the function f(x)=x-e to the power of x end exponent + tan invisible function application open parentheses fraction numerator 2 pi over denominator 7 end fraction close parentheses is

  1. left parenthesis 0 comma infinity right parenthesis    
  2. left parenthesis negative infinity comma 0 right parenthesis    
  3. left parenthesis 1 comma infinity right parenthesis    
  4. None of these    

The correct answer is: left parenthesis negative infinity comma 0 right parenthesis


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