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Simplifying 0 = 2 + 2cos(2x) Remove parenthesis around (2x) 0 = 2 + 2cos * 2x Reorder the terms for easier multiplication: 0 = 2 + 2 * 2cos * x Multiply 2 * 2 0 = 2 + 4cos * x Multiply cos * x 0 = 2 + 4cosx Solving 0 = 2 + 4cosx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-4cosx' to each side of the equation. 0 + -4cosx = 2 + 4cosx + -4cosx Remove the zero: -4cosx = 2 + 4cosx + -4cosx Combine like terms: 4cosx + -4cosx = 0 -4cosx = 2 + 0 -4cosx = 2 Divide each side by '-4osx'. c = -0.5o-1s-1x-1 Simplifying c = -0.5o-1s-1x-1
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