diabolicalangle Posted May 14, 2009 Report Share Posted May 14, 2009 I don't know where to begin, much less solve it. Reply Link to post Share on other sites More sharing options...
bescherelle Posted May 14, 2009 Report Share Posted May 14, 2009 wow pro.50/50 guessi guess convergent Reply Link to post Share on other sites More sharing options...
moneyfaery Posted May 14, 2009 Report Share Posted May 14, 2009 ^^^ It is convergent. I guessed that too. The markscheme makes no sense though. Reply Link to post Share on other sites More sharing options...
SharkSpider Posted May 17, 2009 Report Share Posted May 17, 2009 Well, my best guess is to use the limit comparison test with a series in which all the terms are equal to zero, namely (x^3)^1/3 - x. A limit comparison shows a limit of one when the two are divided, and therefore you have convergence. Reply Link to post Share on other sites More sharing options...
diabolicalangle Posted May 18, 2009 Author Report Share Posted May 18, 2009 closest i could get to solving it. Reply Link to post Share on other sites More sharing options...
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