>>156
Again, you are trying to solve a problem with infinite places with algebra. I'll say this again, you simply can not do that. Algrebra breaks down when dealing with infinity.
Let me put it this way. We are told in our first math class that infinity is not a number. If you don't accept this, you are a fool. Need more? A 1/0 slope is undefined. Why? Because you can't define an infinite slope. Because normal rules don't fucking work with infinity.
Since the .999 is followed by an undefinable number of 9s, there is no way you can apply math operations to it. This includes .999... * 10, or anything else you can think of.
Thinking about calculus? Well, you have a point. Or would, I suppose, if it weren't for the fact that calculus is, by it's very nature, an estimation (who the hell doesn't know this?). Why do you think they word it like "the LIMIT of f(x) as x APPROACHES c is L"? Because you can't prove that f(x) = L for any x. Why? Because they never actually meet.
Thanks for proving you know nothing about mathematics. If you actually managed to take a Calculus course like you imply, I suggest you take another. Either you are a fool, or your teacher was, and either way you have lost all credibility in this conversation. Leave now