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October 31, 2014

October 31, 2014

Posted by **Libby** on Sunday, May 23, 2010 at 8:37pm.

- trig -
**bobpursley**, Sunday, May 23, 2010 at 8:43pmcostheta(costheat-1)=0

costheta=0

or costheta=1

what satisfies that

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