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6 August, 03:02

Solve 2-3 cosx=5+3 cos x for 0

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  1. 6 August, 03:21
    0
    pi/3

    Step-by-step explanation:

    solving for cos (x),

    cos (x) = -1/2

    In the domain of invcos, from 0 to pi only pi/3 (60 degrees) satisfies the equation
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