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July 1, 2015

Homework Help: Integral calculus 2

Posted by Tommy on Thursday, April 19, 2012 at 9:55pm.

This is also one I can't figure out:

∫ x^3 (2x^2 + 1)^1/2 dx

u is obviously = 2x^2 + 1
du = 4x dx
x dx = 1/4 du

1/4 ∫ x^3 u^1/2

from here I know I can't integrate because I can't have more than 1 variable.

Thank you

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