Isab8euniegratasi Isab8euniegratasi
  • 21-11-2016
  • Mathematics
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Integrate (2 ln x)/x ...?

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HomertheGenius
HomertheGenius HomertheGenius
  • 24-11-2016
Substitution:
u = ln x
d u = d x / x
----------------
[tex] \int { \frac{2 lnx}{x} } \, dx = \\ \int {2u} \, du = \\ =2* u^{2}/2 = u^{2}= [/tex]
= ln² x + C
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