Question: In triangle ABC, angle A is bisected by a line segment, creating two angles: angle BAC and angle CAD. If angle BAC measures 40 degrees, what is the measure of angle CAD?
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What is the derivative of y = 3x^4 + 2x^3 - 5x^2 + 7x - 2?
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Math question: Find the value of y when x = 3 in the circle function x^2 + y^2 = 25.