Math Question: In triangle ABC, the angle bisector of angle A intersects BC at point D. If AC = 10 cm, AB = 8 cm, and BD = 6 cm, find the length of DC.
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What is the result of (4^3 * 4^2) / (4^5) ?
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What is the value of f(x) = log x / f(x) = ln x when x = 3?