Math question: What is the 4th order derivative of f(x) = 3x^5 + 2x^3 - 6x^2 + 8x - 1?
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What are the characteristics of the circle defined by the equation x^2 + y^2 = r^2? How does the radius r relate to the distance of any point (x, y) on the circle from the origin?
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Math question: What is the formula for finding the area of a circle given its radius?