What is the limit as x approaches 3 of (2x+1)/(x^2-9)?
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Question: What is the smallest possible value of n in Fermat's theorem that satisfies the equation a^n + b^n = c^n for a, b, c integers, where n > 2? (
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Question: Calculate the dot product of two vectors, u = (-2, 3, 4) and v = (1, -5, 2).