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Math Help - Limit x->infinity

  1. #1
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    Limit x->infinity

    Limit x->infinity-image.jpgHello im stuck with a question
    limit x->infinity  (sqrt(x^2+ax)-sqrt(x^2+bx))
    Picture show My progress
    Last edited by Petrus; February 11th 2013 at 04:02 AM.
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  2. #2
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    Re: Limit x->infinity

    Quote Originally Posted by Petrus View Post
    Hello im stuck with a question
    limit x->infinity  (\sqrt{x^2+ax}-\sqrt{x^2+bx})

    Multiply by  \frac{\sqrt{x^2+ax}+\sqrt{x^2+bx}}{\sqrt{x^2+ax}+ \sqrt{x^2+bx}}
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  3. #3
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    Re: Limit x->infinity

    Thats what i did but im doing something wrong, can u plz look at My picture i hope u can se it
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  4. #4
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    Re: Limit x->infinity

    Nvm solved My misstake.. The misstake i did was i thought ax/x-bx/x=0-0 i was not thinking Clear there...btw ty for the help Plato
    Last edited by Petrus; February 11th 2013 at 04:08 AM.
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