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Simplifying 8cos(2x) = 8 + -8cos(2x) Remove parenthesis around (2x) 8cos * 2x = 8 + -8cos(2x) Reorder the terms for easier multiplication: 8 * 2cos * x = 8 + -8cos(2x) Multiply 8 * 2 16cos * x = 8 + -8cos(2x) Multiply cos * x 16cosx = 8 + -8cos(2x) Remove parenthesis around (2x) 16cosx = 8 + -8cos * 2x Reorder the terms for easier multiplication: 16cosx = 8 + -8 * 2cos * x Multiply -8 * 2 16cosx = 8 + -16cos * x Multiply cos * x 16cosx = 8 + -16cosx Solving 16cosx = 8 + -16cosx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '16cosx' to each side of the equation. 16cosx + 16cosx = 8 + -16cosx + 16cosx Combine like terms: 16cosx + 16cosx = 32cosx 32cosx = 8 + -16cosx + 16cosx Combine like terms: -16cosx + 16cosx = 0 32cosx = 8 + 0 32cosx = 8 Divide each side by '32osx'. c = 0.25o-1s-1x-1 Simplifying c = 0.25o-1s-1x-1
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