Find the derivative of f(x) = cos(3x) - 2sin(2x) + tan(x),
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Math Question: What is the smallest positive integer value of n satisfying the equation x^n + y^n = z^n for different positive integers x, y, and z, in line with Fermat's Theorem?
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What is the period of the trig function f(x) = 2sin(3x) + 4cos(2x)?