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Simplifying sen(2x) + 2cosx + 1 = 0 Remove parenthesis around (2x) ens * 2x + 2cosx + 1 = 0 Reorder the terms for easier multiplication: 2ens * x + 2cosx + 1 = 0 Multiply ens * x 2ensx + 2cosx + 1 = 0 Reorder the terms: 1 + 2cosx + 2ensx = 0 Solving 1 + 2cosx + 2ensx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + 2cosx + -1 + 2ensx = 0 + -1 Reorder the terms: 1 + -1 + 2cosx + 2ensx = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2cosx + 2ensx = 0 + -1 2cosx + 2ensx = 0 + -1 Combine like terms: 0 + -1 = -1 2cosx + 2ensx = -1 Add '-2ensx' to each side of the equation. 2cosx + 2ensx + -2ensx = -1 + -2ensx Combine like terms: 2ensx + -2ensx = 0 2cosx + 0 = -1 + -2ensx 2cosx = -1 + -2ensx Divide each side by '2osx'. c = -0.5o-1s-1x-1 + -1eno-1 Simplifying c = -0.5o-1s-1x-1 + -1eno-1 Reorder the terms: c = -1eno-1 + -0.5o-1s-1x-1
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