What is the period of the tangent function f(x) = tan(x)? Is it possible for the tangent function to have a value greater than 1?
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What is the value of sinh(x) - cosh(x) at x = 2?
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What is the probability that a randomly selected student prefers reading over watching TV, given that there are 20 students who prefer reading, 30 students who prefer watching TV, and altogether 100 students?