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August 13th, 2012, 01:54 AM   #1
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simplification

Hi!

I need to simplify the following

r^2 - r cos theta ( r sin theta cos phi)

can anyone help?

Arron
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August 13th, 2012, 02:18 AM   #2
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Re: simplification

The best I can see is to write:

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August 14th, 2012, 03:46 AM   #3
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Re: simplification

Thanks, but I not sure if gave the equation right.

How about

r^2 - r cos theta r sin theta cos phi

arron
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August 14th, 2012, 04:50 AM   #4
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That's an expression, not an equation, and is equivalent to the expression you gave originally.
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