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Simplifying 3cos(2x) + -4cos(X) + 1 = 0 Remove parenthesis around (2x) 3cos * 2x + -4cos(X) + 1 = 0 Reorder the terms for easier multiplication: 3 * 2cos * x + -4cos(X) + 1 = 0 Multiply 3 * 2 6cos * x + -4cos(X) + 1 = 0 Multiply cos * x 6cosx + -4cos(X) + 1 = 0 Multiply cos * X 6cosx + -4cosX + 1 = 0 Reorder the terms: 1 + -4cosX + 6cosx = 0 Solving 1 + -4cosX + 6cosx = 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 + -4cosX + -1 + 6cosx = 0 + -1 Reorder the terms: 1 + -1 + -4cosX + 6cosx = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -4cosX + 6cosx = 0 + -1 -4cosX + 6cosx = 0 + -1 Combine like terms: 0 + -1 = -1 -4cosX + 6cosx = -1 Reorder the terms: 1 + -4cosX + 6cosx = -1 + 1 Combine like terms: -1 + 1 = 0 1 + -4cosX + 6cosx = 0 The solution to this equation could not be determined.
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