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Limit question

  1. Sep 30, 2007 #1
    hey could anyone help me with some limit probs?
    the lim as x approaches 9
    (x^2 - 81)/([tex]\sqrt{}x[/tex] - 3)

    lim as x approaches 0
    (2x+sinx)/x

    lim as x approaches o from the right side
    (sinx)/(5[tex]\sqrt{}x[/tex])

    lim as x approaches 0
    (tan7x)/(sin3x)

    thanks!
     
  2. jcsd
  3. Sep 30, 2007 #2
    You have to show some attempted workings -- not only because doing is the best way to learn, but because then we know where to begin to help. So in this case, are you familiar with l'Hopital's rule?
     
  4. Oct 1, 2007 #3
    ok i'll guess
    108
    3
    ?
    7/3
     
  5. Oct 1, 2007 #4

    HallsofIvy

    User Avatar
    Staff Emeritus
    Science Advisor

    Don't guess! Show us your calculation- it's not that much to want!
     
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