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Simplifying 1 + -1cos(6x) = 3cos(2x) Remove parenthesis around (6x) 1 + -1cos * 6x = 3cos(2x) Reorder the terms for easier multiplication: 1 + -1 * 6cos * x = 3cos(2x) Multiply -1 * 6 1 + -6cos * x = 3cos(2x) Multiply cos * x 1 + -6cosx = 3cos(2x) Remove parenthesis around (2x) 1 + -6cosx = 3cos * 2x Reorder the terms for easier multiplication: 1 + -6cosx = 3 * 2cos * x Multiply 3 * 2 1 + -6cosx = 6cos * x Multiply cos * x 1 + -6cosx = 6cosx Solving 1 + -6cosx = 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. 1 + -6cosx + -6cosx = 6cosx + -6cosx Combine like terms: -6cosx + -6cosx = -12cosx 1 + -12cosx = 6cosx + -6cosx Combine like terms: 6cosx + -6cosx = 0 1 + -12cosx = 0 Add '-1' to each side of the equation. 1 + -1 + -12cosx = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -12cosx = 0 + -1 -12cosx = 0 + -1 Combine like terms: 0 + -1 = -1 -12cosx = -1 Divide each side by '-12osx'. c = 0.08333333333o-1s-1x-1 Simplifying c = 0.08333333333o-1s-1x-1
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