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Simplifying 0.5cos(2x) = 0 Remove parenthesis around (2x) 0.5cos * 2x = 0 Reorder the terms for easier multiplication: 0.5 * 2cos * x = 0 Multiply 0.5 * 2 1cos * x = 0 Multiply cos * x 1cosx = 0 Solving 1cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Divide each side by '1'. cosx = 0 Simplifying cosx = 0 The solution to this equation could not be determined.

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