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Simplifying Cos(3x) = 0.2 Remove parenthesis around (3x) osC * 3x = 0.2 Reorder the terms for easier multiplication: 3osC * x = 0.2 Multiply osC * x 3osxC = 0.2 Solving 3osxC = 0.2 Solving for variable 'o'. Move all terms containing o to the left, all other terms to the right. Divide each side by '3sxC'. o = 0.06666666667s^{-1}x^{-1}C^{-1}Simplifying o = 0.06666666667s^{-1}x^{-1}C^{-1}

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