Math question: What is the derivative of f(x) = 5x^3 - 4x^2 + 2x - 7?
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Math question: In a triangle ABC, side AB measures 10 cm, side BC measures 15 cm, and angle C measures 60 degrees. Find the length of side AC using the Sine Law.
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What is the period of the trigonometric function y = 2sin(3x) + 1?