Find the limit as x approaches infinity of (e^x - x) / (x^2 + 1).
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Differentiate f(x) = 3sin(2x) - 2cos(3x) with respect to x.
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A farmer collected data on the daily milk production of his cows. If the average production is 28 liters and there are 15 cows, what is the total milk production per week?