Question: Find the area under the hyperbolic cosine function, y = cosh(x), from x = 0 to x = 5.
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What is the measure of angle C in a triangle with sides of lengths 8, 11, and 15, using the cosine law?
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What is the value of the median in a set of seven numbers if the sum of the second highest and the lowest number is equal to the sum of the third highest and the second lowest number?