What is the measure of an angle in a triangle if its adjacent side has a length of 10, the opposite side has a length of 15, and the included angle measures 30 degrees?
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What is the maximum value of the function f(x) = x^2 + 4x - 10 within the interval [-5, 3]?
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Derivative question: What is the derivative of f(x) = 3x^2 + 4x - 1?