What is the period and range of the function f(x) = cot(x)? Express your answers using appropriate mathematical notation.
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Math Question: What is the vertex of the parabola function y = 2x^2 - 3x + 1?
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What is the length of the unknown side in a triangle with an included angle of 30 degrees, an adjacent side of 5 units, and an opposite side of 7 units?