Math question: Find the fourth derivative of f(x) = 3x^4 - 2x^3 + 5x^2 - x + 7.
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What is the value of the expression log(x) / ln(x), where log(x) represents the logarithm of x to an arbitrary base and ln(x) represents the natural logarithm of x?
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Find the equation of a hyperbola with vertices at (-3,0) and (3,0), and foci at (-5,0) and (5,0). (