Question: A rectangular cake is divided into 6 equal slices. If Lucy eats 2/3 of a slice, what fraction, decimal, and percentage of the whole cake did she eat?
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Question: Find the limit as x approaches 2 of (3x^2 - 4) / (x - 2).
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What is the maximum value attained by the cosine function f(x) = cos x in the interval [0, 2Ο]?