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Simplifying cos(2x) * cos(3x) = cos(x) * cos(4x) Remove parenthesis around (2x) cos * 2x * cos(3x) = cos(x) * cos(4x) Remove parenthesis around (3x) cos * 2x * cos * 3x = cos(x) * cos(4x) Reorder the terms for easier multiplication: 2 * 3cos * x * cos * x = cos(x) * cos(4x) Multiply 2 * 3 6cos * x * cos * x = cos(x) * cos(4x) Multiply cos * x 6cosx * cos * x = cos(x) * cos(4x) Multiply cosx * cos 6c2o2s2x * x = cos(x) * cos(4x) Multiply c2o2s2x * x 6c2o2s2x2 = cos(x) * cos(4x) Remove parenthesis around (4x) 6c2o2s2x2 = cos * x * cos * 4x Reorder the terms for easier multiplication: 6c2o2s2x2 = 4cos * x * cos * x Multiply cos * x 6c2o2s2x2 = 4cosx * cos * x Multiply cosx * cos 6c2o2s2x2 = 4c2o2s2x * x Multiply c2o2s2x * x 6c2o2s2x2 = 4c2o2s2x2 Solving 6c2o2s2x2 = 4c2o2s2x2 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-4c2o2s2x2' to each side of the equation. 6c2o2s2x2 + -4c2o2s2x2 = 4c2o2s2x2 + -4c2o2s2x2 Combine like terms: 6c2o2s2x2 + -4c2o2s2x2 = 2c2o2s2x2 2c2o2s2x2 = 4c2o2s2x2 + -4c2o2s2x2 Combine like terms: 4c2o2s2x2 + -4c2o2s2x2 = 0 2c2o2s2x2 = 0 Divide each side by '2'. c2o2s2x2 = 0 Simplifying c2o2s2x2 = 0 The solution to this equation could not be determined.
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