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Simplifying 6cos2x = 1 + cosx Solving 6cos2x = 1 + cosx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-1cosx' to each side of the equation. -1cosx + 6cos2x = 1 + cosx + -1cosx Combine like terms: cosx + -1cosx = 0 -1cosx + 6cos2x = 1 + 0 -1cosx + 6cos2x = 1 Reorder the terms: -1 + -1cosx + 6cos2x = 1 + -1 Combine like terms: 1 + -1 = 0 -1 + -1cosx + 6cos2x = 0 The solution to this equation could not be determined.
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