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Simplifying cos(3x) = cos(0.5x) Remove parenthesis around (3x) cos * 3x = cos(0.5x) Reorder the terms for easier multiplication: 3cos * x = cos(0.5x) Multiply cos * x 3cosx = cos(0.5x) Remove parenthesis around (0.5x) 3cosx = cos * 0.5x Reorder the terms for easier multiplication: 3cosx = 0.5cos * x Multiply cos * x 3cosx = 0.5cosx Solving 3cosx = 0.5cosx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-0.5cosx' to each side of the equation. 3cosx + -0.5cosx = 0.5cosx + -0.5cosx Combine like terms: 3cosx + -0.5cosx = 2.5cosx 2.5cosx = 0.5cosx + -0.5cosx Combine like terms: 0.5cosx + -0.5cosx = 0.0 2.5cosx = 0.0 Divide each side by '2.5'. cosx = 0 Simplifying cosx = 0 The solution to this equation could not be determined.
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