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Counterexamples to L'Hôpital's Rule

by R. P. Boas (Northwestern University)

This article originally appeared in:
American Mathematical Monthly
October, 1986

Subject classification(s): Calculus | Single Variable Calculus | Limits
Applicable Course(s): 3.0 Calculus | 3.2 Mainstream Calculus II | 4.0 Advanced Mathematics | 4.11 Advanced Calc I, II, & Real Analysis

From the introduction, "I am not, of course, claiming that L'Hôpital's rule is wrong, merely that unless it is stated and used very carefully it is capable of yielding spurious results."

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Capsule Course Topic(s):
One-Variable Calculus | Integration Methods
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