Questions asked by Guillaume L.

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• What can you say about a function f defined on #RR#, periodic and growing ?
  
• What is #sum_(k=0)^(4n+2)1/(k+1)+1/(k+3)# ?
  
• How to simplify #sin(sec^(-1)(x))# ?
  
• How to simplify #tan(sec^(-1)(x))# ?
  
• What is #intx/sqrt(1-x^2)# ?
  
• What is #inttan(x)^3sec(x)^3dx# ?
  
• What is #int sec(x)^3tan(x)dx# ?
  
• How do you simplify #sec(tan^(-1)(x))# ?