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Simplifying 3cos(2x) = 3cos(x) Remove parenthesis around (2x) 3cos * 2x = 3cos(x) Reorder the terms for easier multiplication: 3 * 2cos * x = 3cos(x) Multiply 3 * 2 6cos * x = 3cos(x) Multiply cos * x 6cosx = 3cos(x) Multiply cos * x 6cosx = 3cosx Solving 6cosx = 3cosx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-3cosx' to each side of the equation. 6cosx + -3cosx = 3cosx + -3cosx Combine like terms: 6cosx + -3cosx = 3cosx 3cosx = 3cosx + -3cosx Combine like terms: 3cosx + -3cosx = 0 3cosx = 0 Divide each side by '3'. cosx = 0 Simplifying cosx = 0 The solution to this equation could not be determined.
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