中学生数学

2014, (03) 46-47

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What is The Squeeze (or Sandwich) Theorem?
What is The Squeeze (or Sandwich) Theorem?

梁宇学;

摘要(Abstract):

<正>Let's do an exercise as warming up.Ex:Find lim x→0sin1/x.lim x→0sin1/x=lim1/x→∞sin1/x=lim t→∞sint(Let t=1/x).We know lim t→∞sint does not exist,so lim x→0sin1/x DNE.We can use graphing calculator to show the result is DNE(from figure 1to figure 8).

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作者(Author): 梁宇学;

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