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Simplifying 1 + cos(8x) = 0 Remove parenthesis around (8x) 1 + cos * 8x = 0 Reorder the terms for easier multiplication: 1 + 8cos * x = 0 Multiply cos * x 1 + 8cosx = 0 Solving 1 + 8cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 8cosx = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 8cosx = 0 + -1 8cosx = 0 + -1 Combine like terms: 0 + -1 = -1 8cosx = -1 Divide each side by '8osx'. c = -0.125o-1s-1x-1 Simplifying c = -0.125o-1s-1x-1
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