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Simplifying 4cos + 1 = 2cos Reorder the terms: 1 + 4cos = 2cos Solving 1 + 4cos = 2cos Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-2cos' to each side of the equation. 1 + 4cos + -2cos = 2cos + -2cos Combine like terms: 4cos + -2cos = 2cos 1 + 2cos = 2cos + -2cos Combine like terms: 2cos + -2cos = 0 1 + 2cos = 0 Add '-1' to each side of the equation. 1 + -1 + 2cos = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 2cos = 0 + -1 2cos = 0 + -1 Combine like terms: 0 + -1 = -1 2cos = -1 Divide each side by '2os'. c = -0.5o-1s-1 Simplifying c = -0.5o-1s-1
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