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Simplifying cos(2x) + -5sinx + -3 = 0 Remove parenthesis around (2x) cos * 2x + -5sinx + -3 = 0 Reorder the terms for easier multiplication: 2cos * x + -5sinx + -3 = 0 Multiply cos * x 2cosx + -5sinx + -3 = 0 Reorder the terms: -3 + 2cosx + -5insx = 0 Solving -3 + 2cosx + -5insx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 2cosx + 3 + -5insx = 0 + 3 Reorder the terms: -3 + 3 + 2cosx + -5insx = 0 + 3 Combine like terms: -3 + 3 = 0 0 + 2cosx + -5insx = 0 + 3 2cosx + -5insx = 0 + 3 Combine like terms: 0 + 3 = 3 2cosx + -5insx = 3 Add '5insx' to each side of the equation. 2cosx + -5insx + 5insx = 3 + 5insx Combine like terms: -5insx + 5insx = 0 2cosx + 0 = 3 + 5insx 2cosx = 3 + 5insx Divide each side by '2osx'. c = 1.5o-1s-1x-1 + 2.5ino-1 Simplifying c = 1.5o-1s-1x-1 + 2.5ino-1 Reorder the terms: c = 2.5ino-1 + 1.5o-1s-1x-1
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