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Simplifying sin(2x) * cos(5x) + cos(2x) * sin(5x) = 0 Remove parenthesis around (2x) ins * 2x * cos(5x) + cos(2x) * sin(5x) = 0 Remove parenthesis around (5x) ins * 2x * cos * 5x + cos(2x) * sin(5x) = 0 Reorder the terms for easier multiplication: 2 * 5ins * x * cos * x + cos(2x) * sin(5x) = 0 Multiply 2 * 5 10ins * x * cos * x + cos(2x) * sin(5x) = 0 Multiply ins * x 10insx * cos * x + cos(2x) * sin(5x) = 0 Multiply insx * cos 10cinos2x * x + cos(2x) * sin(5x) = 0 Multiply cinos2x * x 10cinos2x2 + cos(2x) * sin(5x) = 0 Remove parenthesis around (2x) 10cinos2x2 + cos * 2x * sin(5x) = 0 Remove parenthesis around (5x) 10cinos2x2 + cos * 2x * ins * 5x = 0 Reorder the terms for easier multiplication: 10cinos2x2 + 2 * 5cos * x * ins * x = 0 Multiply 2 * 5 10cinos2x2 + 10cos * x * ins * x = 0 Multiply cos * x 10cinos2x2 + 10cosx * ins * x = 0 Multiply cosx * ins 10cinos2x2 + 10cinos2x * x = 0 Multiply cinos2x * x 10cinos2x2 + 10cinos2x2 = 0 Combine like terms: 10cinos2x2 + 10cinos2x2 = 20cinos2x2 20cinos2x2 = 0 Solving 20cinos2x2 = 0 Solving for variable 'c'. Move all terms containing c to the left, all other terms to the right. Divide each side by '20'. cinos2x2 = 0.0 Simplifying cinos2x2 = 0.0 The solution to this equation could not be determined.
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