Henry Imler September 18th, 2006

In the latest issue of Discover they did a little proof that 0.99999… does equal 1. This is how they did it.

1. Take .999999 (repeating) to equal x.
2. Take x times 10 equals 10x
3. So 10x = 9.9999999
4. 10x - x = 9x
5. 9x = 9 (9.999999…. - 0.99999…. = 9)
6. Therefore, x = 1 and .99999….

Crazy, no?

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