What is the simplified form of the mixed number 3 1/4 when expressed as an improper fraction?
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Math question: In triangle ABC, angle A measures 40 degrees. The angle bisector of angle A intersects side BC at point D. If BD = 8 cm, what is the length of DC?
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Math question: Evaluate β«(4x^3 + 2x^2 + 6x - 2)dx using the standard formulas of integrals. (