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A two dimension limit

  1. Mar 4, 2013 #1
    1. The problem statement, all variables and given/known data
    [itex]
    \lim _{ (x,y)\rightarrow (0^{ + },0^{ + }) }{ \frac { { e }^{ \sqrt { x+y } } }{ 4x+2y-5 } } [/itex]

    2. Relevant equations
    eh.

    SO I did the problem. I usually sub 1/n for 0+ in most of these, but clearly the top goes to 1 from +inf, and the bottom goes to -5.... Hence... -1/5

    But.
    The multiple choice was

    A)[itex]\stackrel{\nearrow}{\rightarrow}\frac {1 }{ 5 } [/itex]

    B) [itex]\frac {1 }{ 5 } [/itex]


    C)[itex]\stackrel{\nearrow}{\rightarrow}1[/itex]

    D) 1

    What on earth does [itex]\stackrel{\nearrow}{\rightarrow}[/itex] mean?!!?!?
     
  2. jcsd
  3. Mar 4, 2013 #2

    Dick

    User Avatar
    Science Advisor
    Homework Helper

    Nothing wrong with what you did. I have no idea what they are trying to say.
     
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