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Simplifying 5sin(4x) = -10sin(2x) Remove parenthesis around (4x) 5ins * 4x = -10sin(2x) Reorder the terms for easier multiplication: 5 * 4ins * x = -10sin(2x) Multiply 5 * 4 20ins * x = -10sin(2x) Multiply ins * x 20insx = -10sin(2x) Remove parenthesis around (2x) 20insx = -10ins * 2x Reorder the terms for easier multiplication: 20insx = -10 * 2ins * x Multiply -10 * 2 20insx = -20ins * x Multiply ins * x 20insx = -20insx Solving 20insx = -20insx Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '20insx' to each side of the equation. 20insx + 20insx = -20insx + 20insx Combine like terms: 20insx + 20insx = 40insx 40insx = -20insx + 20insx Combine like terms: -20insx + 20insx = 0 40insx = 0 Divide each side by '40'. insx = 0 Simplifying insx = 0 The solution to this equation could not be determined.
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