Question: What is the period of the cosine function f(x) = cos(x)? Is it possible for the cosine function to have a period greater than 2π? Justify your answer.(
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What is the square root of the sum of the first 50 natural numbers?
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Find the resultant displacement when a vector of magnitude 25 units is added to a vector of magnitude 17 units at an angle of 40 degrees.