You can put this solution on YOUR website! Solve equation for all value of ø if ø measure in degrees
2cos^2ø+2=5cosø
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2cos^2 - 5cos + 2 = 0
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2cos^2 - 4cos-cos +2 = 0
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2cos(cos-2) - (cos-2) = 0
(cos-2)(2cos-1) = 0
cos = 2 or cos = 1/2
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cos(theta) = 1/2
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theta = pi/3
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Cheers,
Stan H.
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