0.9....(循環) = 1 [難題]

Pentagon

如何解釋:
+ }; Z3 `, \) G9 }( _* n- y+ @$ ]
0.9....(循環) = 1

Pentagon

The answer is:5.39.217.77. m0 t$ M! k1 }6 s: d& X
, M. u" Z# U8 j# P, ~
If 1/9=0.1...(循環)5.39.217.77  }7 e' U5 e5 C% _* E+ l/ g5 @
and then 2/9=0.2....(循環)tvb now,tvbnow,bttvb" m2 J# j$ l3 u  h6 l
and then 3/9=0.3....(循環)5.39.217.770 \/ ?/ W$ T2 g2 L
and then 4/9=0.4....(循環)
1 f5 j, ]! P. N: X) K3 P( Y1 J公仔箱論壇.......
+ d5 ?& S4 j7 a: a8 S2 t2 @5 V公仔箱論壇and then 8/9=0.8....(循環)
& {& R1 f! _; p
$ f/ L" F0 Z) @' c" rtvb now,tvbnow,bttvbSo, 9/9=0.9....(循環) =1