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Simplifying 2cosine(2x) + 1 = 0 Remove parenthesis around (2x) 2ceinos * 2x + 1 = 0 Reorder the terms for easier multiplication: 2 * 2ceinos * x + 1 = 0 Multiply 2 * 2 4ceinos * x + 1 = 0 Multiply ceinos * x 4ceinosx + 1 = 0 Reorder the terms: 1 + 4ceinosx = 0 Solving 1 + 4ceinosx = 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 + 4ceinosx = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 4ceinosx = 0 + -1 4ceinosx = 0 + -1 Combine like terms: 0 + -1 = -1 4ceinosx = -1 Divide each side by '4einosx'. c = -0.25e-1i-1n-1o-1s-1x-1 Simplifying c = -0.25e-1i-1n-1o-1s-1x-1
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