(5)/(x^2 sqrt(9x^2-1))dx

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- Mar 4th 2008, 08:01 AMBust2000intergrate
(5)/(x^2 sqrt(9x^2-1))dx

- Mar 4th 2008, 08:40 AMKrizalid
Set $\displaystyle x=\frac1u.$

- Mar 4th 2008, 08:42 AMPeritus
$\displaystyle

x = \frac{1}

{3}\cosh u

$