anonymous
  • anonymous
Im having a problem Integrating dx/(2+x^(1/2)) When i used U substitution u^2=x and 2udu=dx i got 2udu/(2+u) but i realy dont know what to do now?
MIT 18.01 Single Variable Calculus (OCW)
jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Try to substitute: \[y = 2 + \sqrt{x} \\ dy = \frac{1}{2\sqrt{x}}dx = \frac{1}{2(y-2)}dx\]
anonymous
  • anonymous
yes! I solved it now, thanks! That last step when you changed x^1/2 to (y-2) helpt a lot :D

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