What is the derivative of f(g(x)) if f(x) = x^2 and g(x) = sin(x)?
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What is the sine function value for an angle of 30 degrees?
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Math question: Given a triangle ABC with angle at vertex A bisected by line AD, and AD intersects side BC at point D. If AB = 10 units and AC = 12 units, find the length of BD.