Im having a brain fade here, and I know this is basic algebra, but cant remember how to do it. I need to solve for cos(theta) 1-cos(theta)=1+cos(theta) Thanks for your help
Last edited by mr fantastic; December 8th 2009 at 11:56 AM. Reason: rt --> de
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Originally Posted by BCHurricane89 Im having a brain fade here, and I know this is basic algebra, but cant remember how to do it. I need to solve for cos(theta) 1-cos(theta)=1+cos(theta) Thanks for your help Add to both sides and then add to both sides: where k is an integer
Last edited by mr fantastic; December 8th 2009 at 11:56 AM.
doh! that kinda what I thought, except the book had cos(theta)=0, but we have 2cos(theta)=0
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