%0 Journal Article %T 关于∞ / ∞未定式L’Hospital法则的一个注记
A Note on L’Hospital Rule of Indeterminate Form ∞ / ∞ %A 刘丹 %A 王丽英 %A 毛凯 %J Pure Mathematics %P 922-927 %@ 2160-7605 %D 2019 %I Hans Publishing %R 10.12677/PM.2019.98119 %X

L’Hospital法则是求解极限问题中未定式的一种经典而有效的方法。本文从未定式常见类型∞ / ∞出发,研究了一类拓展型未定式? / ∞,在一定条件下将L’Hospital法则进行了推广,给出了广义L’Hospital法则。
L’Hospital rule is a classical and effective method to solve indeterminate form in limit problem. This paper studies a class of extended indeterminate form ? / ∞ based on common indeterminate form ∞ / ∞, generalizes L’Hospital rule under certain conditions and obtains generalized L’Hospital rule.

%K &infin %K / &infin %K 未定式,L’Hospital法则,&lowast %K / &infin %K 未定式,广义L’Hospital法则
Indeterminate Form &infin %K / &infin %K L’Hospital Rule %K Indeterminate Form &lowast %K / &infin %K Generalized L’Hospital Rule %U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=32608