.999... =1

<p>I dont know dude, 0.3333… is an infinite series which is also a limit. Of course, engineers would say that 0.9999… = 1. But pure math doesnt say so, you better go ask your calculus teacher what a limit is in the first place. Or rather,</p>

<p>lim (x-> 1) x = 1 but its actually not, it approaches to one</p>

<p>OR</p>

<p>1/0 is undefined BUT
lim(x->0) 1/x = infinity.</p>