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Simplifying cos2x + 2sinx + 2 = 0 Reorder the terms: 2 + cos2x + 2insx = 0 Solving 2 + cos2x + 2insx = 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 + cos2x + -2 + 2insx = 0 + -2 Reorder the terms: 2 + -2 + cos2x + 2insx = 0 + -2 Combine like terms: 2 + -2 = 0 0 + cos2x + 2insx = 0 + -2 cos2x + 2insx = 0 + -2 Combine like terms: 0 + -2 = -2 cos2x + 2insx = -2 Add '-2insx' to each side of the equation. cos2x + 2insx + -2insx = -2 + -2insx Combine like terms: 2insx + -2insx = 0 cos2x + 0 = -2 + -2insx cos2x = -2 + -2insx Divide each side by 'os2x'. c = -2o-1s-2x-1 + -2ino-1s-1 Simplifying c = -2o-1s-2x-1 + -2ino-1s-1 Reorder the terms: c = -2ino-1s-1 + -2o-1s-2x-1
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