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Simplifying 2cos2x + 5sinx = 4 Solving 2cos2x + 5insx = 4 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-5insx' to each side of the equation. 2cos2x + 5insx + -5insx = 4 + -5insx Combine like terms: 5insx + -5insx = 0 2cos2x + 0 = 4 + -5insx 2cos2x = 4 + -5insx Divide each side by '2os2x'. c = 2o-1s-2x-1 + -2.5ino-1s-1 Simplifying c = 2o-1s-2x-1 + -2.5ino-1s-1 Reorder the terms: c = -2.5ino-1s-1 + 2o-1s-2x-1
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