Math question: Find the absolute extrema of the function f(x) = 2xΒ³ - 9xΒ² + 12x - 4 on the interval [-2, 4].
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What is the amplitude, period, and range of the cosine function f(x) = cos x? How many x-intercepts does it have? Does it have vertical asymptotes? Why or why not?
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Math Question: Solve the cubic equation x^3 - 4x^2 + 5x - 2 = 0. (