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Simplifying sin(3x) = -1sin(7x) Remove parenthesis around (3x) ins * 3x = -1sin(7x) Reorder the terms for easier multiplication: 3ins * x = -1sin(7x) Multiply ins * x 3insx = -1sin(7x) Remove parenthesis around (7x) 3insx = -1ins * 7x Reorder the terms for easier multiplication: 3insx = -1 * 7ins * x Multiply -1 * 7 3insx = -7ins * x Multiply ins * x 3insx = -7insx Solving 3insx = -7insx Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '7insx' to each side of the equation. 3insx + 7insx = -7insx + 7insx Combine like terms: 3insx + 7insx = 10insx 10insx = -7insx + 7insx Combine like terms: -7insx + 7insx = 0 10insx = 0 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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