integral problems

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April 22nd 2009, 08:06 AM
fiksi

integral problems

evaluate integrals:

I(0 to 3) abs(x-2) dx

I x2/(sqrt(-x+3)*sqrt(x+3)) dx

I 2/ (16-x2) to pwr of 5/2 dx

I (5x-12)/(x2 - 4x) dx

thx in advance...
April 22nd 2009, 09:00 AM
running-gag

Hi

$\int_{0}^{3} |x-2|\:dx = \int_{0}^{2} |x-2|\:dx + \int_{2}^{3} |x-2|\:dx = \int_{0}^{2} (2-x) \:dx + \int_{2}^{3} (x-2)\:dx$

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