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Simplifying 4cos2x * 4cosx + 1 = 0 Reorder the terms for easier multiplication: 4 * 4cos2x * cosx + 1 = 0 Multiply 4 * 4 16cos2x * cosx + 1 = 0 Multiply cos2x * cosx 16c2o2s3x2 + 1 = 0 Reorder the terms: 1 + 16c2o2s3x2 = 0 Solving 1 + 16c2o2s3x2 = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 16c2o2s3x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 16c2o2s3x2 = 0 + -1 16c2o2s3x2 = 0 + -1 Combine like terms: 0 + -1 = -1 16c2o2s3x2 = -1 Divide each side by '16o2s3x2'. c2 = -0.0625o-2s-3x-2 Simplifying c2 = -0.0625o-2s-3x-2 Combine like terms: -0.0625o-2s-3x-2 + 0.0625o-2s-3x-2 = 0.0000 c2 + 0.0625o-2s-3x-2 = 0.0000 The solution to this equation could not be determined.
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