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Simplifying cos(2x + pi) = 1 Reorder the terms: cos(ip + 2x) = 1 (ip * cos + 2x * cos) = 1 (ciops + 2cosx) = 1 Solving ciops + 2cosx = 1 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Reorder the terms: -1 + ciops + 2cosx = 1 + -1 Combine like terms: 1 + -1 = 0 -1 + ciops + 2cosx = 0 The solution to this equation could not be determined.
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