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Simplifying cos(2x) = senx + cosx Remove parenthesis around (2x) cos * 2x = senx + cosx Reorder the terms for easier multiplication: 2cos * x = senx + cosx Multiply cos * x 2cosx = senx + cosx Reorder the terms: 2cosx = cosx + ensx Solving 2cosx = cosx + ensx 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. 2cosx + -1cosx = cosx + -1cosx + ensx Combine like terms: 2cosx + -1cosx = 1cosx 1cosx = cosx + -1cosx + ensx Combine like terms: cosx + -1cosx = 0 1cosx = 0 + ensx 1cosx = ensx Divide each side by '1osx'. c = eno-1 Simplifying c = eno-1
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