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Simplifying cos(x) + 1.5cos(1.5x) = 0 Multiply cos * x cosx + 1.5cos(1.5x) = 0 Remove parenthesis around (1.5x) cosx + 1.5cos * 1.5x = 0 Reorder the terms for easier multiplication: cosx + 1.5 * 1.5cos * x = 0 Multiply 1.5 * 1.5 cosx + 2.25cos * x = 0 Multiply cos * x cosx + 2.25cosx = 0 Combine like terms: cosx + 2.25cosx = 3.25cosx 3.25cosx = 0 Solving 3.25cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Divide each side by '3.25'. cosx = 0 Simplifying cosx = 0 The solution to this equation could not be determined.
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