Math Question: What is the smallest positive integer value of n that satisfies Fermat's Theorem for the equation x^n + y^n = z^n, where x, y, and z are positive integers? (
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What is the standard deviation of a dataset consisting of the following values: 10, 15, 12, 18, 20?
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Question: What is the amplitude, period, phase shift, and range of the cosine function f(x) = cos(x)?