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Simplifying Cos(2x) = -0.5 Remove parenthesis around (2x) osC * 2x = -0.5 Reorder the terms for easier multiplication: 2osC * x = -0.5 Multiply osC * x 2osxC = -0.5 Solving 2osxC = -0.5 Solving for variable 'o'. Move all terms containing o to the left, all other terms to the right. Divide each side by '2sxC'. o = -0.25s-1x-1C-1 Simplifying o = -0.25s-1x-1C-1
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