What is the formula for finding the perimeter of a regular polygon with 'n' sides?
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Question: What is the basis of vectors in a 3-dimensional space?
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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.