I need help please with a basic integral.(adsbygoogle = window.adsbygoogle || []).push({});

http://i40.tinypic.com/a589qp.gif

These integrals is immediate?

What the general formula?

And here, exercises 1 & 4:

http://i43.tinypic.com/zksmck.gif

Thanks.

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# Help with basic integral

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