Math question: Determine the derivative of f(x) = sin(2x) - 3cos(x) at x = Ο/4.
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Find the real solutions of the equation x^3 - 2x^2 + 4x - 8 = 0.
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What is the end behavior of the cubic function f(x) = x^3? Does the graph approach negative infinity as x approaches negative infinity and positive infinity as x approaches positive infinity?