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Another limit question

  1. Dec 19, 2008 #1
    the question and how i tried o solve them
    http://img206.imageshack.us/img206/8/84758564bu8.gif [Broken]

    i tried lhopital
    but its a complex function derivative nightmare

    is there an easier way?
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Dec 19, 2008 #2


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    it's not a nightmare … you just have to be careful

    (and remember you can ignore anything that's gong to end up with a bare tanx or sinx factor the thrid time)

    alternatively, you could try using the expansion √(1 + x) = 1 + (1/2)x + (?)x2 + (?)x3
    Last edited by a moderator: May 3, 2017
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