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Simplifying 2cos2(2x) + -6cos2(X) + 1 = 0 Remove parenthesis around (2x) 2cos2 * 2x + -6cos2(X) + 1 = 0 Reorder the terms for easier multiplication: 2 * 2cos2 * x + -6cos2(X) + 1 = 0 Multiply 2 * 2 4cos2 * x + -6cos2(X) + 1 = 0 Multiply cos2 * x 4cos2x + -6cos2(X) + 1 = 0 Multiply cos2 * X 4cos2x + -6cos2X + 1 = 0 Reorder the terms: 1 + -6cos2X + 4cos2x = 0 Solving 1 + -6cos2X + 4cos2x = 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 + -6cos2X + -1 + 4cos2x = 0 + -1 Reorder the terms: 1 + -1 + -6cos2X + 4cos2x = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -6cos2X + 4cos2x = 0 + -1 -6cos2X + 4cos2x = 0 + -1 Combine like terms: 0 + -1 = -1 -6cos2X + 4cos2x = -1 Reorder the terms: 1 + -6cos2X + 4cos2x = -1 + 1 Combine like terms: -1 + 1 = 0 1 + -6cos2X + 4cos2x = 0 The solution to this equation could not be determined.
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