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Simplifying 4cos2(x) + -2 = 0 Multiply cos2 * x 4cos2x + -2 = 0 Reorder the terms: -2 + 4cos2x = 0 Solving -2 + 4cos2x = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + 4cos2x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + 4cos2x = 0 + 2 4cos2x = 0 + 2 Combine like terms: 0 + 2 = 2 4cos2x = 2 Divide each side by '4os2x'. c = 0.5o-1s-2x-1 Simplifying c = 0.5o-1s-2x-1
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