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