Use Exercise 75 to show that ex /x2 x/6 and conclude that lim x ex /x2 = . Then use
Chapter 5, Problem 77(choose chapter or problem)
Use Exercise 75 to show that ex /x2 x/6 and conclude that lim x ex /x2 = . Then use Exercise 76 to prove more generally that lim x ex /xn = for all n.
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