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Simplifying cos(6x) + 6cos2(3x) = 1 Remove parenthesis around (6x) cos * 6x + 6cos2(3x) = 1 Reorder the terms for easier multiplication: 6cos * x + 6cos2(3x) = 1 Multiply cos * x 6cosx + 6cos2(3x) = 1 Remove parenthesis around (3x) 6cosx + 6cos2 * 3x = 1 Reorder the terms for easier multiplication: 6cosx + 6 * 3cos2 * x = 1 Multiply 6 * 3 6cosx + 18cos2 * x = 1 Multiply cos2 * x 6cosx + 18cos2x = 1 Solving 6cosx + 18cos2x = 1 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Reorder the terms: -1 + 6cosx + 18cos2x = 1 + -1 Combine like terms: 1 + -1 = 0 -1 + 6cosx + 18cos2x = 0 The solution to this equation could not be determined.
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