Limit calculus

  • #1

Main Question or Discussion Point

I was reviewing my concepts of limits and didnt manage to solve this one. Probably is simple but im not managing to get it.

Limit (2^x * (x + 1)) / (1 - 3^x)
+oo

i can see the answer is 0 but cant manage to get it...

Thx in advance,
 

Answers and Replies

  • #2
quasar987
Science Advisor
Homework Helper
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Recall that [itex]a^x=e^{\ln(a)x}[/itex].
 
  • #3
yea, i remember that one...but still no luck in refactoring to a possible 0 result.
 
  • #4
Divide top and bottom by 2^x.
 
  • #5
Got it... divide by 2^x and then divid again by x.

Thx people ;)
 

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