Answers created by trosk

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• How do you differentiate `y=sec^-1(4x)`?
  
• How do you integrate `int e^(sec2x)sec2xtan2xdx` from `[pi/3,pi/2]`?
  
• Question #67981
  
• What is `f(x) = int 1/sqrt(x^2+1) dx` if `f(2) = 3`?
  
• How do you integrate `int 1/sqrt(-e^(2x)-20e^x-64)dx` using trigonometric substitution?
  
• How do you integrate `int e^(2x)/sqrt(e^(2x) -36)dx` using trigonometric substitution?
  
• How do you integrate `int 1/sqrt(x^2-4x+13)dx` using trigonometric substitution?
  
• How do you integrate `int 1/sqrt(9x^2-18x+8)` using trigonometric substitution?
  
• How do you integrate `int (4x)/sqrt(x^2-14x+65)dx` using trigonometric substitution?
  
• How do you evaluate `log_3(27)`?
  
• How do you find the derivative of `ln sqrt (x^2-4)`?
  
• How do you find the definite integral of `int x^3-xdx` from `[0,2]`?
  
• What is the radius of convergence of `sum_1^oo ((2x)^n ) / 8^(2n)`?