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Simplifying 4cos(2x) + 3cos(x) = 1 Remove parenthesis around (2x) 4cos * 2x + 3cos(x) = 1 Reorder the terms for easier multiplication: 4 * 2cos * x + 3cos(x) = 1 Multiply 4 * 2 8cos * x + 3cos(x) = 1 Multiply cos * x 8cosx + 3cos(x) = 1 Multiply cos * x 8cosx + 3cosx = 1 Combine like terms: 8cosx + 3cosx = 11cosx 11cosx = 1 Solving 11cosx = 1 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Divide each side by '11osx'. c = 0.09090909091o-1s-1x-1 Simplifying c = 0.09090909091o-1s-1x-1
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