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Simplifying 0 = 4cos(3x) Remove parenthesis around (3x) 0 = 4cos * 3x Reorder the terms for easier multiplication: 0 = 4 * 3cos * x Multiply 4 * 3 0 = 12cos * x Multiply cos * x 0 = 12cosx Solving 0 = 12cosx Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-12cosx' to each side of the equation. 0 + -12cosx = 12cosx + -12cosx Remove the zero: -12cosx = 12cosx + -12cosx Combine like terms: 12cosx + -12cosx = 0 -12cosx = 0 Divide each side by '-12'. cosx = 0 Simplifying cosx = 0 The solution to this equation could not be determined.
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