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  1. P

    I am unsure of factorials

    To djeikyb: your response makes sense now. I misunderstood 1/2^n to be 1/2n. Thank you. :-) To Mark44: Thank you :-)
  2. P

    I am unsure of factorials

    Well, I know from the comparison test, if An=1/(2n)! and Bn=1/2n and if An is less than Bn, and if Bn is convergent, than An is also convergent. Yet, in this case, Bn is divergent (because 1/2n is a p-series with p=1, and this is divergent.) So, the comparison test shows nothing... So, I am...
  3. P

    I am unsure of factorials

    I am unsure as to how factorials should be expanded. I have \sum\stackrel{1}{(2n!)} (if what was just typed did not make sense due to html error on my part, it is supposed to say the sum of 1/(2n)!) from n=1 to infinity. I did the ratio test and found the limit to be 0, which is less than...
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