What are the possible ways to arrange the letters in the word "MATH" using all the letters exactly once?
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What is the measure of angle O in a circle, given that angle A and angle B are both inscribed angles with measures 60°, and angle C is a central angle with a measure of 120°?
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What is the derivative of f(g(x)) when g(x) = 2x^3 - 5x + 1 and f(x) = 4x^2 - 3x + 2?