Friday

April 18, 2014

April 18, 2014

Posted by **chris** on Monday, November 8, 2010 at 4:29pm.

- 12th grade -
**bobpursley**, Monday, November 8, 2010 at 4:39pm5/9

arccos 5/9 is quite another thing, it is equal to 56.25 deg

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