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Simplifying 3cos(2x) + 4 = 4 Remove parenthesis around (2x) 3cos * 2x + 4 = 4 Reorder the terms for easier multiplication: 3 * 2cos * x + 4 = 4 Multiply 3 * 2 6cos * x + 4 = 4 Multiply cos * x 6cosx + 4 = 4 Reorder the terms: 4 + 6cosx = 4 Add '-4' to each side of the equation. 4 + -4 + 6cosx = 4 + -4 Combine like terms: 4 + -4 = 0 0 + 6cosx = 4 + -4 6cosx = 4 + -4 Combine like terms: 4 + -4 = 0 6cosx = 0 Solving 6cosx = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Divide each side by '6'. cosx = 0 Simplifying cosx = 0 The solution to this equation could not be determined.
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