0.99999......999999=1????
_______Xn___________
no round up/ down/ off....
maths
2009-01-11 7:59 pm
回答 (3)
2009-01-12 6:10 am
✔ 最佳答案
Let0.9999(循環)=x0.9999(循環)=x--------(1)
9.9999(循環)=10x-----(2)<---將(1)左右都乘10
(2)-(1)
9.9999(循環)-0.9999(循環)=10x-x
_____________________9=9x
_____________________x=1
SO_0.999999999(循環)=1
參考: 我
2009-01-11 8:11 pm
唔明窩...
0.99999......999999=1 又點會等於1呢?(你又話唔比round off)
_______Xn___________ 呢條唔知系咩式, 唔知要寫咩
0.99999......999999=1 又點會等於1呢?(你又話唔比round off)
_______Xn___________ 呢條唔知系咩式, 唔知要寫咩
收錄日期: 2021-04-25 19:08:19
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