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Simplifying sinx + sin(2x) + sin(3x) + sin(4x) = 0 Remove parenthesis around (2x) insx + ins * 2x + sin(3x) + sin(4x) = 0 Reorder the terms for easier multiplication: insx + 2ins * x + sin(3x) + sin(4x) = 0 Multiply ins * x insx + 2insx + sin(3x) + sin(4x) = 0 Remove parenthesis around (3x) insx + 2insx + ins * 3x + sin(4x) = 0 Reorder the terms for easier multiplication: insx + 2insx + 3ins * x + sin(4x) = 0 Multiply ins * x insx + 2insx + 3insx + sin(4x) = 0 Remove parenthesis around (4x) insx + 2insx + 3insx + ins * 4x = 0 Reorder the terms for easier multiplication: insx + 2insx + 3insx + 4ins * x = 0 Multiply ins * x insx + 2insx + 3insx + 4insx = 0 Combine like terms: insx + 2insx = 3insx 3insx + 3insx + 4insx = 0 Combine like terms: 3insx + 3insx = 6insx 6insx + 4insx = 0 Combine like terms: 6insx + 4insx = 10insx 10insx = 0 Solving 10insx = 0 Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Divide each side by '10'. insx = 0.0 Simplifying insx = 0.0 The solution to this equation could not be determined.
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