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Simplifying sin(2x) * cosx + -1cos(2x) * sinx = sinx Remove parenthesis around (2x) ins * 2x * cosx + -1cos(2x) * sinx = sinx Reorder the terms for easier multiplication: 2ins * x * cosx + -1cos(2x) * sinx = sinx Multiply ins * x 2insx * cosx + -1cos(2x) * sinx = sinx Multiply insx * cosx 2cinos2x2 + -1cos(2x) * sinx = sinx Remove parenthesis around (2x) 2cinos2x2 + -1cos * 2x * sinx = sinx Reorder the terms for easier multiplication: 2cinos2x2 + -1 * 2cos * x * insx = sinx Multiply -1 * 2 2cinos2x2 + -2cos * x * insx = sinx Multiply cos * x 2cinos2x2 + -2cosx * insx = sinx Multiply cosx * insx 2cinos2x2 + -2cinos2x2 = sinx Combine like terms: 2cinos2x2 + -2cinos2x2 = 0 0 = sinx Solving 0 = insx Solving for variable 'i'. Move all terms containing i to the left, all other terms to the right. Add '-1insx' to each side of the equation. 0 + -1insx = insx + -1insx Remove the zero: -1insx = insx + -1insx Combine like terms: insx + -1insx = 0 -1insx = 0 Divide each side by '-1'. insx = 0 Simplifying insx = 0 The solution to this equation could not be determined.
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