What is the period of the trigonometric function f(x) = 3sin(5x) + 2cos(3x)?
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What is the average temperature (in degrees Celsius) of a city on Monday, Tuesday, and Wednesday, if the temperatures are 18°C, 22°C, and 16°C, respectively?
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Question: What is the limit as x approaches 3 of (x^2 - 9)/(x - 3)?