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