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Simplifying cos(2x) * cos(x) = cos(2.5x) * cos(0.5x) Remove parenthesis around (2x) cos * 2x * cos(x) = cos(2.5x) * cos(0.5x) Reorder the terms for easier multiplication: 2cos * x * cos * x = cos(2.5x) * cos(0.5x) Multiply cos * x 2cosx * cos * x = cos(2.5x) * cos(0.5x) Multiply cosx * cos 2c2o2s2x * x = cos(2.5x) * cos(0.5x) Multiply c2o2s2x * x 2c2o2s2x2 = cos(2.5x) * cos(0.5x) Remove parenthesis around (2.5x) 2c2o2s2x2 = cos * 2.5x * cos(0.5x) Remove parenthesis around (0.5x) 2c2o2s2x2 = cos * 2.5x * cos * 0.5x Reorder the terms for easier multiplication: 2c2o2s2x2 = 2.5 * 0.5cos * x * cos * x Multiply 2.5 * 0.5 2c2o2s2x2 = 1.25cos * x * cos * x Multiply cos * x 2c2o2s2x2 = 1.25cosx * cos * x Multiply cosx * cos 2c2o2s2x2 = 1.25c2o2s2x * x Multiply c2o2s2x * x 2c2o2s2x2 = 1.25c2o2s2x2 Solving 2c2o2s2x2 = 1.25c2o2s2x2 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Add '-1.25c2o2s2x2' to each side of the equation. 2c2o2s2x2 + -1.25c2o2s2x2 = 1.25c2o2s2x2 + -1.25c2o2s2x2 Combine like terms: 2c2o2s2x2 + -1.25c2o2s2x2 = 0.75c2o2s2x2 0.75c2o2s2x2 = 1.25c2o2s2x2 + -1.25c2o2s2x2 Combine like terms: 1.25c2o2s2x2 + -1.25c2o2s2x2 = 0.00 0.75c2o2s2x2 = 0.00 Divide each side by '0.75'. c2o2s2x2 = 0 Simplifying c2o2s2x2 = 0 The solution to this equation could not be determined.
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