Math question: What is the smallest positive integer value of n that satisfies Fermat’s Theorem x^n + y^n = z^n for distinct positive integers x, y, z?
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What is the limit of (x^3 + 2x^2 - x - 2)/(x^2 + 3x + 2) as x approaches 1?
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In how many different ways can 5 students be arranged in a line?