Solve cos 3x + cosx - cos2x=0

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solve cos 3x + cosx - cos2x=0

Shiroz Shareeyar

Sept. 7, 2017, 4:24 p.m.

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Aadesh Konar

May 12, 2018, 1:29 p.m.

solve cos 3x + cosx - cos2x=0

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