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Simplifying 0 = 1 + -3cos(2x) Remove parenthesis around (2x) 0 = 1 + -3cos * 2x Reorder the terms for easier multiplication: 0 = 1 + -3 * 2cos * x Multiply -3 * 2 0 = 1 + -6cos * x Multiply cos * x 0 = 1 + -6cosx Solving 0 = 1 + -6cosx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '6cosx' to each side of the equation. 0 + 6cosx = 1 + -6cosx + 6cosx Remove the zero: 6cosx = 1 + -6cosx + 6cosx Combine like terms: -6cosx + 6cosx = 0 6cosx = 1 + 0 6cosx = 1 Divide each side by '6osx'. c = 0.1666666667o-1s-1x-1 Simplifying c = 0.1666666667o-1s-1x-1
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