Plot f (x) = x/(x2 1) (in a suitably bounded viewing box). Use the plot to determine
Chapter 3, Problem 47(choose chapter or problem)
Plot f (x) = x/(x2 1) (in a suitably bounded viewing box). Use the plot to determine whether f (x) is positive or negative on its domain {x : x = 1}. Then compute f (x) and confirm your conclusion algebraically. 4
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