integrals.wolfram.com   Use one of Mathematica's 2500+ functions FREE online

Wolfram Mathematica Online Integrator
The world's only full-power integration solver
∫
-(ArcTan[Sqrt[5]/Sqrt[-5 + x^2]]/Sqrt[5])

Integrate[1/(x*Sqrt[-5 + x^2]), x] ==
-(ArcTan[Sqrt[5]/Sqrt[-5 + x^2]]/Sqrt[5]) 

                 1
Integrate[---------------, x] == 
                       2
          x Sqrt[-5 + x ]

            Sqrt[5]
  ArcTan[-------------]
                    2
         Sqrt[-5 + x ]
-(---------------------)
         Sqrt[5]
Time to compute: 0.02 second
Spread the word: