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**Daniel123****Member**- Registered: 2007-05-23
- Posts: 663

Having just evaluated 45 integrals, my brain has gone numb.

Can someone please tell me what to do for this:

Thanks.

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**George,Y****Member**- Registered: 2006-03-12
- Posts: 1,320

a/(aa+4) ?

**X'(y-Xβ)=0**

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**Daniel123****Member**- Registered: 2007-05-23
- Posts: 663

George,Y wrote:

a/(aa+4) ?

Sorry?

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**mathsyperson****Moderator**- Registered: 2005-06-22
- Posts: 4,900

I think George is substituting, using

.Why did the vector cross the road?

It wanted to be normal.

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**TheDude****Member**- Registered: 2007-10-23
- Posts: 361

That's not what it comes out to though. Using that substitution gives

, which I'm not certain is better than what we started with.Wrap it in bacon

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**luca-deltodesco****Member**- Registered: 2006-05-05
- Posts: 1,470

*Last edited by luca-deltodesco (2009-02-04 10:07:32)*

The Beginning Of All Things To End.

The End Of All Things To Come.

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**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

TheDude wrote:

, which I'm not certain is better than what we started with.

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**TheDude****Member**- Registered: 2007-10-23
- Posts: 361

JaneFairfax wrote:

TheDude wrote:, which I'm not certain is better than what we started with.

Well, when you put it like that, it is better

Wrap it in bacon

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**Daniel123****Member**- Registered: 2007-05-23
- Posts: 663

Thanks guys and girls

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