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July 22, 2014

July 22, 2014

Posted by **Anonymous** on Saturday, September 5, 2009 at 5:52pm.

2 cos^2x=7cosx-3

- MATH (Problem Solving) -
**bobpursley**, Saturday, September 5, 2009 at 6:08pmcould it be

2 cos^2-7cos +3=0

(2cosx -1)(cosx-3)=0

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