Math question: Given triangle ABC, where angle BAC measures 60 degrees, and the angle bisector of angle BAC intersects side BC at point D. If side AB measures 8 units, find the length of BD.
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What is the maximum value attained by the cosine function f(x) = cos x, and at what value of x does it occur? (
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What is the mean, mode, median, range, and average of the set: {4, 7, 6, 9, 4, 11, 3, 7, 10}?