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Simplifying 4cos2x + -1 = 3cos Reorder the terms: -1 + 4cos2x = 3cos Solving -1 + 4cos2x = 3cos Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-3cos' to each side of the equation. -1 + -3cos + 4cos2x = 3cos + -3cos Combine like terms: 3cos + -3cos = 0 -1 + -3cos + 4cos2x = 0 Add '1' to each side of the equation. -1 + -3cos + 1 + 4cos2x = 0 + 1 Reorder the terms: -1 + 1 + -3cos + 4cos2x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -3cos + 4cos2x = 0 + 1 -3cos + 4cos2x = 0 + 1 Combine like terms: 0 + 1 = 1 -3cos + 4cos2x = 1 Reorder the terms: -1 + -3cos + 4cos2x = 1 + -1 Combine like terms: 1 + -1 = 0 -1 + -3cos + 4cos2x = 0 The solution to this equation could not be determined.
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