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Simplifying sin(4x) * cos(6x) + -1cos(4x) * sin(6x) = -0.4 Remove parenthesis around (4x) ins * 4x * cos(6x) + -1cos(4x) * sin(6x) = -0.4 Remove parenthesis around (6x) ins * 4x * cos * 6x + -1cos(4x) * sin(6x) = -0.4 Reorder the terms for easier multiplication: 4 * 6ins * x * cos * x + -1cos(4x) * sin(6x) = -0.4 Multiply 4 * 6 24ins * x * cos * x + -1cos(4x) * sin(6x) = -0.4 Multiply ins * x 24insx * cos * x + -1cos(4x) * sin(6x) = -0.4 Multiply insx * cos 24cinos2x * x + -1cos(4x) * sin(6x) = -0.4 Multiply cinos2x * x 24cinos2x2 + -1cos(4x) * sin(6x) = -0.4 Remove parenthesis around (4x) 24cinos2x2 + -1cos * 4x * sin(6x) = -0.4 Remove parenthesis around (6x) 24cinos2x2 + -1cos * 4x * ins * 6x = -0.4 Reorder the terms for easier multiplication: 24cinos2x2 + -1 * 4 * 6cos * x * ins * x = -0.4 Multiply -1 * 4 24cinos2x2 + -4 * 6cos * x * ins * x = -0.4 Multiply -4 * 6 24cinos2x2 + -24cos * x * ins * x = -0.4 Multiply cos * x 24cinos2x2 + -24cosx * ins * x = -0.4 Multiply cosx * ins 24cinos2x2 + -24cinos2x * x = -0.4 Multiply cinos2x * x 24cinos2x2 + -24cinos2x2 = -0.4 Combine like terms: 24cinos2x2 + -24cinos2x2 = 0 0 = -0.4 Solving 0 = -0.4 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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