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Calculus: Solve indeterminate question up

  1. Nov 28, 2013 #1
    Please help .... I forgot how to do these calculus problem....

    Does (infinity)^a * e^(-infinity), where a >1 equal to 0?

    If so, why? If not, how to calculate it?
     
  2. jcsd
  3. Nov 28, 2013 #2

    Dick

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    You do these things by finding limits. 'infinity' by itself doesn't mean much. Do you mean limit x->infinity x^a*e^(-x)? Since you have an indeterminant limit exactly how you approach infinity in each instance of 'infinity' is pretty important.
     
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