Bizarreries mathématiques

Pharaonjack - Windows Live
http://pharaonjack.spaces.live.com/blog/cns!7AC2D9FA72413365!764.entry
a = 0,9999999…
10a = 9,999999…. = 9+a
10a-a = 9
9a = 9
a = 1
0,9999999…. = 1 !!!!
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