Originally posted by Demigod
shouldnt 10x - x be the same as 9x?
0.9999 x 9 = 8.9991
9.9999 - 0.9999 = 9.
didnt work.
Originally posted by tandoc
show us how to do that on a computer then
And I ask you...what is infinity minus one?Originally posted by Demigod
i already know that the eps. stand for infinite 9's behind it. im just saying...maybe when you move the decimal over, there's one less nine, regardless if its a repeating decimal or not.
might not make sense but it works.
It's called a repetend bar. It's pretty much a big no-no in higher levels of math.Originally posted by LeX
We're taught to use lines, called "bar".
_
Like: 0.9
You are not multiplying infinity by 10. Rather, you are multiplying by a rational number with infinitely many decimal places.Originally posted by Demigod
But then, how do multiply infinite by 10, subtract infinite, and then get it to equal 1. A number cant be the same as another number. .9.... is not 1.
Originally posted by shizzle
Just want to add to this yet another proof. .9999... = 1. It does. I asked my math professor, and it does. Well, he showed me this whole long calculus operation on why and how... I don't remember it, but .999...=1. Think about it:
1/3 =.33333333.... = 1/3
2/3 =.66666666.... = 2/3
3/3 =.99999999.... = 1