stonecold
Thank you for the response=>
GMATinsightPlease feel free to search the forum on infinite termed questions. you will find 100's of questions..
But since you asked => '...' represents infinity ; undefined represents Infinity too;
Try this out
if-the-infinite-sum-1-2-1-1-2-2-1-2-3-1-2-4-1-what-is-174967.htmlAgain ; i agree its a bit odd question but its sole purpose to test the knowledge => If you can shoot a birds eye => Man you can shoot a plane too

Best
Stone Cold Steve Austin
stonecold ,
GMATinsight , infinite number of solutions/infinity/not defined have not been in GMAT's scope.
stonecold , the question link that you posted above is for a veritas prep question and not an official question.
GMATinsight wanted you to quote a question testing the knowledge of infinite solutions etc from official source and not any source. Asking a question for your understanding is fine but using that to justify out of scope usage of concepts is not going to help readers of this forum. If I follow your logic, then logs as well are in the scope of statistics but is not tested in GMAT (so is trigonometry).
I would request all to stick to what is usually asked in GMAT.
Thanks.