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-   -   Limits! (https://www.askmehelpdesk.com/showthread.php?t=123457)

  • Aug 27, 2007, 07:36 PM
    meg24209
    Limits!
    what is the limit as x-->0 when tan^2x / x
  • Aug 27, 2007, 07:42 PM
    shygrneyzs
    We do not do homework for people on the site. We do offer helps, can give advice on your work, but we are not going to give the answer.

    I will give you a website on math.
    QuickMath Automatic Math Solutions
  • Aug 27, 2007, 07:44 PM
    meg24209
    I am not trying to get someone to do my hw!! I have worked hard on this problem and I cannot figure it out. I was just looking for some help. Even if someone could me the first step! Not the answer!! Shyrgrneyzs
  • Aug 28, 2007, 03:44 AM
    galactus
    Try rewrting as :

  • Aug 28, 2007, 07:15 AM
    meg24209
    That mean sinx/x--> 1 because of properties of limits. And that leaves sinx(1/cos^2x)
  • Aug 28, 2007, 08:39 AM
    galactus
    Another thing you could do is use L'Hopital.

    Find the derivative of

    That is

    The derivative of x is 1, so you have:



    Is that easier?


    BTW, , not 1.
  • Aug 28, 2007, 03:24 PM
    meg24209
    I didn't say that. I said sinx/x is 1.

    My teacher helped me solve the problem and gave the answer 0.
    Thanks for the help.
  • Aug 28, 2007, 06:32 PM
    galactus
    I know you didn't say that. I was pointing it out from my previous post. Yes, the answer is 0.

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