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Originally Posted by Phil 33
What do you mean flawed math? A lot of people don't like this..
.999~ = 1 (~ means "going on forever")
...but its true. He already gave this proof, so I don't know why I'm showing it again.
x = 0.9~
- 10x = 9.9~
___________ (subtract and the .9~'s cancel out
-9x = -9
x = 1
Therefore: 1 = -.9~
Like it or not, its true.
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Fair enough the second proof works, but I was referring to the first one.
If you check the math on the second one, though, you end up with 9 * .999~ = 8.999999999999999999999999999991 (give or take .000000000000000000000000000001) but it never equals 9. I could graph it and show where the line never intersects, but I'm wayyyy lazy to do that.
In calculus they always tell you there's more than one calculus for every problem, and think these are definitely proofs of that atleast
