What is the 5th derivative of f(x) = 2x^3 - 3x^2 + 4x?
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Question: What is the measure, in degrees, of an angle in a right triangle whose other two angles measure 35° and 55°?
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Math Question: In triangle ABC, angle A measures 60 degrees. The angle bisector of angle A intersects side BC at point D. If the length of side AC is 10 cm, what is the length of BD?