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Simplifying sin(2x) * cos(x) + -1cos(2x) * sin(x) = sin(x) Remove parenthesis around (2x) ins * 2x * cos(x) + -1cos(2x) * sin(x) = sin(x) Reorder the terms for easier multiplication: 2ins * x * cos * x + -1cos(2x) * sin(x) = sin(x) Multiply ins * x 2insx * cos * x + -1cos(2x) * sin(x) = sin(x) Multiply insx * cos 2cinos2x * x + -1cos(2x) * sin(x) = sin(x) Multiply cinos2x * x 2cinos2x2 + -1cos(2x) * sin(x) = sin(x) Remove parenthesis around (2x) 2cinos2x2 + -1cos * 2x * sin(x) = sin(x) Reorder the terms for easier multiplication: 2cinos2x2 + -1 * 2cos * x * ins * x = sin(x) Multiply -1 * 2 2cinos2x2 + -2cos * x * ins * x = sin(x) Multiply cos * x 2cinos2x2 + -2cosx * ins * x = sin(x) Multiply cosx * ins 2cinos2x2 + -2cinos2x * x = sin(x) Multiply cinos2x * x 2cinos2x2 + -2cinos2x2 = sin(x) Combine like terms: 2cinos2x2 + -2cinos2x2 = 0 0 = sin(x) Multiply ins * x 0 = insx 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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