1.

Let S⊂(0,π) denote the set of values of x satisfying the equation 81+|cosx|+cos2x+|cos3x|+...to ∞=43 .Then, S=

Answer»

Let S(0,π) denote the set of values of x satisfying the equation 81+|cosx|+cos2x+|cos3x|+...to =43 .Then, S=




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