What is the median of a set of numbers: 2, 4, 6, 8, 10, 12, 14, 16, 18?
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What are the roots of the cubic equation 2x^3 - 5x^2 + 3x + 2 = 0?
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Math question: In a circle, if two chords intersect, the product of the segments of one chord equals the product of the segments of the other chord. Prove it.