What is the smallest value of n for which the equation x^n + y^n = z^n has no whole number solutions, as per Fermat's theorem?
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Math Question: The angle between two intersecting highways is 120°. If one highway is 500 meters long and the other is 400 meters long, what is the distance between their closest points?
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What is the common characteristic between logarithmic functions f(x) = log x and f(x) = ln x?