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