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Simplifying 3cos(2x) + -1 = 0.5 Remove parenthesis around (2x) 3cos * 2x + -1 = 0.5 Reorder the terms for easier multiplication: 3 * 2cos * x + -1 = 0.5 Multiply 3 * 2 6cos * x + -1 = 0.5 Multiply cos * x 6cosx + -1 = 0.5 Reorder the terms: -1 + 6cosx = 0.5 Solving -1 + 6cosx = 0.5 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 + 6cosx = 0.5 + 1 Combine like terms: -1 + 1 = 0 0 + 6cosx = 0.5 + 1 6cosx = 0.5 + 1 Combine like terms: 0.5 + 1 = 1.5 6cosx = 1.5 Divide each side by '6osx'. c = 0.25o-1s-1x-1 Simplifying c = 0.25o-1s-1x-1
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