Math question: What is the smallest positive integer solution for the equation x^n + y^n = z^n, where x, y, and z are integers, n is an integer greater than 2, and satisfies Fermat's theorem?
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What is the limit as x approaches 2 of (3x-6)/(x^2-4)?
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Question: What is the volume of a sphere with a radius of 4 units?