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(2*Sqrt[x]*Sqrt[4 + x]*ArcSinh[Sqrt[x]/2])/Sqrt[-(x*(4 + x))]


Integrate[1/Sqrt[4 - (2 + x)^2], x] ==
(2*Sqrt[x]*Sqrt[4 + x]*ArcSinh[Sqrt[x]/2])/ Sqrt[-(x*(4 + x))]



                  1
Integrate[------------------, x] == 
                          2
          Sqrt[4 - (2 + x) ]

                              Sqrt[x]
2 Sqrt[x] Sqrt[4 + x] ArcSinh[-------]
                                 2
--------------------------------------
          Sqrt[-(x (4 + x))]

Time to compute: 0.02 second

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