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Simplifying 8cos(2x) + -5.657 = 0 Remove parenthesis around (2x) 8cos * 2x + -5.657 = 0 Reorder the terms for easier multiplication: 8 * 2cos * x + -5.657 = 0 Multiply 8 * 2 16cos * x + -5.657 = 0 Multiply cos * x 16cosx + -5.657 = 0 Reorder the terms: -5.657 + 16cosx = 0 Solving -5.657 + 16cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '5.657' to each side of the equation. -5.657 + 5.657 + 16cosx = 0 + 5.657 Combine like terms: -5.657 + 5.657 = 0.000 0.000 + 16cosx = 0 + 5.657 16cosx = 0 + 5.657 Combine like terms: 0 + 5.657 = 5.657 16cosx = 5.657 Divide each side by '16osx'. c = 0.3535625o-1s-1x-1 Simplifying c = 0.3535625o-1s-1x-1
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