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Simplifying 3cos2x + -4cos2x + 1 = 0 Reorder the terms: 1 + 3cos2x + -4cos2x = 0 Combine like terms: 3cos2x + -4cos2x = -1cos2x 1 + -1cos2x = 0 Solving 1 + -1cos2x = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + -1cos2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -1cos2x = 0 + -1 -1cos2x = 0 + -1 Combine like terms: 0 + -1 = -1 -1cos2x = -1 Divide each side by '-1os2x'. c = o-1s-2x-1 Simplifying c = o-1s-2x-1
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