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Functions as Power Series

  • Thread starter lha08
  • Start date
  • #1
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Homework Statement


I'm having a little trouble concerning the part where we have to calculate the endpoints of a known interval of convergence in order to see whether they are convergent or divergent. In this case, is the summation of n=0 to infinity of (-1)^n/10 diverging or converging. Are there any tests to prove that? I'm kinda confused. Thanks


Homework Equations





The Attempt at a Solution

 

Answers and Replies

  • #2
33,162
4,847
Have you looked at the alternating series test?
 
  • #3
164
0
Have you looked at the alternating series test?
uhh yea, but it just gives bn= 1/10 which doesn;t make sense...i think
 
  • #4
Dick
Science Advisor
Homework Helper
26,258
618
(-1)^n/10 doesn't converge. Don't be silly. It doesn't even approach 0. Did you mean to post something else?
 

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