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Simplifying 2sin(4x) * cos(x) + -2cos(4x) * sin(x) = 1 Remove parenthesis around (4x) 2ins * 4x * cos(x) + -2cos(4x) * sin(x) = 1 Reorder the terms for easier multiplication: 2 * 4ins * x * cos * x + -2cos(4x) * sin(x) = 1 Multiply 2 * 4 8ins * x * cos * x + -2cos(4x) * sin(x) = 1 Multiply ins * x 8insx * cos * x + -2cos(4x) * sin(x) = 1 Multiply insx * cos 8cinos2x * x + -2cos(4x) * sin(x) = 1 Multiply cinos2x * x 8cinos2x2 + -2cos(4x) * sin(x) = 1 Remove parenthesis around (4x) 8cinos2x2 + -2cos * 4x * sin(x) = 1 Reorder the terms for easier multiplication: 8cinos2x2 + -2 * 4cos * x * ins * x = 1 Multiply -2 * 4 8cinos2x2 + -8cos * x * ins * x = 1 Multiply cos * x 8cinos2x2 + -8cosx * ins * x = 1 Multiply cosx * ins 8cinos2x2 + -8cinos2x * x = 1 Multiply cinos2x * x 8cinos2x2 + -8cinos2x2 = 1 Combine like terms: 8cinos2x2 + -8cinos2x2 = 0 0 = 1 Solving 0 = 1 Couldn't find a variable to solve for. This equation is invalid, the left and right sides are not equal, therefore there is no solution.
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