0.999999999.. = 1. 공식가져왔농

x = 0.999999…10x = 9.9999999…10x-x = 9.9999999… – 0.99999999…9x = 9x = 99″ role=”presentation” style=”margin: 0px; padding: 0px; display: inline-table; line-height: normal; word-spacing: normal; overflow-wrap: normal; white-space: nowrap; float: none; direction: ltr; max-width: none; max-height: none; min-width: 0px; min-height: 0px; border: 0px; relative;”>9999x = 1Thus 0.99999… = 1.