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March 28, 2015

March 28, 2015

Posted by **matrix school 2** on Thursday, August 6, 2009 at 1:46pm.

(1) dx/25+(x-5)^2

(2) cos^8xsinxdx

- integral -
**Marth**, Thursday, August 6, 2009 at 1:53pm(1) Do you mean dx/(25+(x-5)^2) or dx(1/25+(x-5)^2)?

(2) (cos(x))^8sin(x)dx

let u = cos(x)

du = - sin(x)

= integral(-u^8du)

= -(u^9)/9 +C

= -((cos(x))^9)/9 +C

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