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Simplifying 4cos2x + -11cosx + 6 = 0 Reorder the terms: 6 + -11cosx + 4cos2x = 0 Solving 6 + -11cosx + 4cos2x = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -11cosx + -6 + 4cos2x = 0 + -6 Reorder the terms: 6 + -6 + -11cosx + 4cos2x = 0 + -6 Combine like terms: 6 + -6 = 0 0 + -11cosx + 4cos2x = 0 + -6 -11cosx + 4cos2x = 0 + -6 Combine like terms: 0 + -6 = -6 -11cosx + 4cos2x = -6 Reorder the terms: 6 + -11cosx + 4cos2x = -6 + 6 Combine like terms: -6 + 6 = 0 6 + -11cosx + 4cos2x = 0 The solution to this equation could not be determined.
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