Question: Consider the function f(x) = x^2 - 4x + 3 defined on the closed interval [1, 5]. Determine if there exists an x in this interval such that f(x) attains an extreme value using the Extreme Value Theorem.
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Math question: What is the sum of the measures of the interior angles of a congruent triangle?
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What is the maximum value of the cotangent function f(x) = cot x for x in the interval (0, π)?