intergral (1)/((9-x^2)^(3/2))dx

Looks almost like arc sin to me but its cubed

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- Mar 4th 2008, 07:43 AMBust2000square root integral
intergral (1)/((9-x^2)^(3/2))dx

Looks almost like arc sin to me but its cubed - Mar 4th 2008, 08:01 AMPeritus
use the following substitution:

$\displaystyle x = 3\sin u

$ - Mar 4th 2008, 08:41 AMKrizalid
You can also avoid trig. with the reciprocal substitution.