- #1
MotoPayton
- 96
- 0
I am getting lost in the proof in the 5th line when it says there are 10 numbers that have the same kth digit as x. Why 10? I don't understand where this number is coming from and it doesn't seem arbitrary.
the rest of the proof
http://i603.photobucket.com/albums/tt113/KtmPayton/0306132314.jpg
the rest of the proof
http://i603.photobucket.com/albums/tt113/KtmPayton/0306132314.jpg