ihuerta on 01 June 2007
Man, I never thought so many people would have trouble comprehending that 0.999... with infinite 9's goes on forever, you can´t just cut it off at some point. Both basic demonstrations have already been done in this topic: 1.- x=0.999999....... 10*x=9.99999......... 10*x - x = 9.9999......... - 0.9999999........ = 9 -> x= 1 2.- 0.99999....... = 0.33333...... + 0.333333....... + 0.333333....... = 1/3 + 1/3 + 1/3 = 1 Anyway, you don't have to believe me, this is a link to Doctor Math: http://mathforum.org/dr.math/faq/faq.0.9999.html
