Math question: Find the ninth derivative of f(x) = (3x^4 - 2x^3 + 7x^2 - 5x)cos(2x) at x = Ο/4.
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Math question: What is the y-intercept of a graph that represents the equation of a line in the form y = mx + b where m = -2 and the graph passes through point (3, -5)?
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Question: What is the product of the mixed number 3 1/4, the factored number 24, and the real number -5.2?