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Simplifying -2sinx + 2cos(3x) = 0 Remove parenthesis around (3x) -2insx + 2cos * 3x = 0 Reorder the terms for easier multiplication: -2insx + 2 * 3cos * x = 0 Multiply 2 * 3 -2insx + 6cos * x = 0 Multiply cos * x -2insx + 6cosx = 0 Reorder the terms: 6cosx + -2insx = 0 Solving 6cosx + -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. 6cosx + -2insx + 2insx = 0 + 2insx Combine like terms: -2insx + 2insx = 0 6cosx + 0 = 0 + 2insx 6cosx = 0 + 2insx Remove the zero: 6cosx = 2insx Divide each side by '6osx'. c = 0.3333333333ino-1 Simplifying c = 0.3333333333ino-1
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