Question: What is the maximum value, or extrema, of the function f(x) = -2x^3 + 5x^2 - 3x + 2 in the interval [-2, 2]?
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Math question: Find the limit as x approaches 0 of (sin(x) - x)/x² using L'Hospital's Rule.
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What are the characteristics of the circle function x^2 + y^2 = r^2? Is it always centered at the origin? Does it have a constant radius? Does it intersect the x and y axes? Does it have symmetry?