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Simplifying 2cos2x + -1 = secx Reorder the terms: -1 + 2cos2x = secx Solving -1 + 2cos2x = cesx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-1cesx' to each side of the equation. -1 + -1cesx + 2cos2x = cesx + -1cesx Combine like terms: cesx + -1cesx = 0 -1 + -1cesx + 2cos2x = 0 Add '1' to each side of the equation. -1 + -1cesx + 1 + 2cos2x = 0 + 1 Reorder the terms: -1 + 1 + -1cesx + 2cos2x = 0 + 1 Combine like terms: -1 + 1 = 0 0 + -1cesx + 2cos2x = 0 + 1 -1cesx + 2cos2x = 0 + 1 Combine like terms: 0 + 1 = 1 -1cesx + 2cos2x = 1 Reorder the terms: -1 + -1cesx + 2cos2x = 1 + -1 Combine like terms: 1 + -1 = 0 -1 + -1cesx + 2cos2x = 0 The solution to this equation could not be determined.
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