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

Find the general solution algebraically.

2 cos^2x=7cosx-3

  • MATH (Problem Solving) - , Saturday, September 5, 2009 at 6:08pm

    could it be
    2 cos^2-7cos +3=0

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

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