0.9....(循環) = 1 [難題]

Pentagon

如何解釋:" L( T/ `0 f& D. x9 q! B3 m9 E- H
5.39.217.77:8898$ ?' j; g/ C! A% l3 F; u
0.9....(循環) = 1

Pentagon

The answer is:tvb now,tvbnow,bttvb9 b5 H& Y5 k# R' O" S$ G: z

. ]+ o9 e! T0 |$ O1 ^* R; V: a5.39.217.77:8898If 1/9=0.1...(循環)
& t- B9 W1 U1 q  K/ i3 k公仔箱論壇and then 2/9=0.2....(循環)5.39.217.77:88983 d7 G5 y5 R1 F
and then 3/9=0.3....(循環)5.39.217.77:88981 a! k5 {, s9 z  D) q
and then 4/9=0.4....(循環)9 Y$ S+ }5 w# Q* M- h0 E
.......
% m; B0 u$ g) mand then 8/9=0.8....(循環)
. d+ p- A: _" p6 q- c+ A& ~8 utvb now,tvbnow,bttvb
) P0 f: N7 W' a8 tSo, 9/9=0.9....(循環) =1