Answers edited by paho

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• How do you find the integral of #f(x)=5xcos(2x)# using integration by parts?
  
• How do you integrate #int 1/sqrt(x^2-4)^3# by trigonometric substitution?
  
• How do you integrate #1/(9x^2+4)^2 dx#?
  
• Evaluate #lim_(x rarr -oo) sqrt(x^2 + x) - x #?
  
• #x^2 cosx dx# intregrate?
  
• How do you integrate #int arccosx# by parts from #[0,1/2]#?
  
• How do you evaluate the integral #int x^3/sqrt(1-9x^2)#?
  
• Integrate x-1/(x+1)²?
  
• #int(e^(2x)+1)/(e^x-1)dx#=?
  
• Question #2d98d
  
• How do you find #int (1-tanx)^2dx#?
  
• How to integrate #sqrt(x^2 - 3x^4)#?
  
• What is #intr(lnr)^2dr#?
  
• What is the integral of #cos(x)/(5+sin^2(x))dx#?
  
• Find derivative of (tanx/x) log(e^x/x^x)?