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Cosine limit

  1. Oct 19, 2009 #1
    I'm trying to remember a limit I was supposed to have memorized for calc. Is this right?

    limx-->0 [Cosx - 1]/x = 0

    I know it was something like that, but I'm not sure

  2. jcsd
  3. Oct 19, 2009 #2
    That's right. You can find the limit by using some algebra and limx→0 sinx/x = 1
  4. Oct 19, 2009 #3


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    Homework Helper

    I call that limit cos'(0)=-sin(0)=0
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