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Simplifying cos(2x) + -1sen(2x) = senx Remove parenthesis around (2x) cos * 2x + -1sen(2x) = senx Reorder the terms for easier multiplication: 2cos * x + -1sen(2x) = senx Multiply cos * x 2cosx + -1sen(2x) = senx Remove parenthesis around (2x) 2cosx + -1ens * 2x = senx Reorder the terms for easier multiplication: 2cosx + -1 * 2ens * x = senx Multiply -1 * 2 2cosx + -2ens * x = senx Multiply ens * x 2cosx + -2ensx = senx Solving 2cosx + -2ensx = ensx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '2ensx' to each side of the equation. 2cosx + -2ensx + 2ensx = ensx + 2ensx Combine like terms: -2ensx + 2ensx = 0 2cosx + 0 = ensx + 2ensx 2cosx = ensx + 2ensx Combine like terms: ensx + 2ensx = 3ensx 2cosx = 3ensx Divide each side by '2osx'. c = 1.5eno-1 Simplifying c = 1.5eno-1
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