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Simplifying 8cos2(x) + -8 = 0 Multiply cos2 * x 8cos2x + -8 = 0 Reorder the terms: -8 + 8cos2x = 0 Solving -8 + 8cos2x = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '8' to each side of the equation. -8 + 8 + 8cos2x = 0 + 8 Combine like terms: -8 + 8 = 0 0 + 8cos2x = 0 + 8 8cos2x = 0 + 8 Combine like terms: 0 + 8 = 8 8cos2x = 8 Divide each side by '8os2x'. c = o-1s-2x-1 Simplifying c = o-1s-2x-1
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