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Simplifying 3cos(2x) + sin(x) + -2 = 0 Remove parenthesis around (2x) 3cos * 2x + sin(x) + -2 = 0 Reorder the terms for easier multiplication: 3 * 2cos * x + sin(x) + -2 = 0 Multiply 3 * 2 6cos * x + sin(x) + -2 = 0 Multiply cos * x 6cosx + sin(x) + -2 = 0 Multiply ins * x 6cosx + insx + -2 = 0 Reorder the terms: -2 + 6cosx + insx = 0 Solving -2 + 6cosx + insx = 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 + 6cosx + 2 + insx = 0 + 2 Reorder the terms: -2 + 2 + 6cosx + insx = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 6cosx + insx = 0 + 2 6cosx + insx = 0 + 2 Combine like terms: 0 + 2 = 2 6cosx + insx = 2 Add '-1insx' to each side of the equation. 6cosx + insx + -1insx = 2 + -1insx Combine like terms: insx + -1insx = 0 6cosx + 0 = 2 + -1insx 6cosx = 2 + -1insx Divide each side by '6osx'. c = 0.3333333333o-1s-1x-1 + -0.1666666667ino-1 Simplifying c = 0.3333333333o-1s-1x-1 + -0.1666666667ino-1 Reorder the terms: c = -0.1666666667ino-1 + 0.3333333333o-1s-1x-1
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