1=0.999999999999999999999999999999999..., page-4

  1. 2,710 Posts.

    y = 0.9999999999999...      --------- A
    10 y = 9.99999999999...     --------- B

    B - A = 10 y - y = 9.0000000...

    9 y = 9.0000000...

    Therefore, y = 1.0000000...

    Is this a right proof for 1 = 0.9999999... ?

 
arrow-down-2 Created with Sketch. arrow-down-2 Created with Sketch.