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September 23, 2014

September 23, 2014

Posted by **Paula** on Friday, August 14, 2009 at 2:35pm.

- Trigs -
**drwls**, Friday, August 14, 2009 at 3:58pmThe cosine of pi/3 (60 degrees) is 1/2. Therefore, the value is the square root of 16. Assume the positive value.

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