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Simplifying sin(4x) * cos(7x) + -1cos(4x) * sin(7x) = -0.45 Remove parenthesis around (4x) ins * 4x * cos(7x) + -1cos(4x) * sin(7x) = -0.45 Remove parenthesis around (7x) ins * 4x * cos * 7x + -1cos(4x) * sin(7x) = -0.45 Reorder the terms for easier multiplication: 4 * 7ins * x * cos * x + -1cos(4x) * sin(7x) = -0.45 Multiply 4 * 7 28ins * x * cos * x + -1cos(4x) * sin(7x) = -0.45 Multiply ins * x 28insx * cos * x + -1cos(4x) * sin(7x) = -0.45 Multiply insx * cos 28cinos2x * x + -1cos(4x) * sin(7x) = -0.45 Multiply cinos2x * x 28cinos2x2 + -1cos(4x) * sin(7x) = -0.45 Remove parenthesis around (4x) 28cinos2x2 + -1cos * 4x * sin(7x) = -0.45 Remove parenthesis around (7x) 28cinos2x2 + -1cos * 4x * ins * 7x = -0.45 Reorder the terms for easier multiplication: 28cinos2x2 + -1 * 4 * 7cos * x * ins * x = -0.45 Multiply -1 * 4 28cinos2x2 + -4 * 7cos * x * ins * x = -0.45 Multiply -4 * 7 28cinos2x2 + -28cos * x * ins * x = -0.45 Multiply cos * x 28cinos2x2 + -28cosx * ins * x = -0.45 Multiply cosx * ins 28cinos2x2 + -28cinos2x * x = -0.45 Multiply cinos2x * x 28cinos2x2 + -28cinos2x2 = -0.45 Combine like terms: 28cinos2x2 + -28cinos2x2 = 0 0 = -0.45 Solving 0 = -0.45 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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