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Solve : 2cos2x =1 (0≤ x ≤2π)?

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Solve : 2cos2x =1 (0≤ x ≤2π)?

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  1. 2cos2x=1

    cos2x=1/2

    2x=cos-1(1/2) which is 60 but since you want radian it's 1/6pi

    2x=1/6pi, 5/6pi (since you want it in between 0 and 2pi

    x=1/12pi,5/12pi  

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