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  1. Thread Author  Thread Author    #1  

    Default .99999=1

    Is .99999999 with infinite 9s equal to 1?

    Can someone get this straight?

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  2. #2  
    PostmanPat's Avatar

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    Default Re: .99999=1

    In math, no, in practical computing terms, yes.
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  3. Thread Author  Thread Author    #3  

    Default Re: .99999=1

    But I thought if you had an infinite series it would equal to 1

    And since 1/9 is .111111
    .1111111x9=.9999999
    9/9=1?



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  4. #4  

    Default Re: .99999=1


    No. It does not.
  5. #5  

    Default Re: .99999=1

    x = 0.999...
    10x = 9.999...
    10x-x = 9.999... - 0.999...
    9x = 9
    x = 1
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  6. #6  

    Default Re: .99999=1

    Are you f.cking kidding me people! My brain hurts just thinking about you people thinking about this question! Damn

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  7. #7  
    Johnly's Avatar

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    Default Re: .99999=1

    Quote Originally Posted by -darkknight- View Post
    Is .99999999 with infinite 9s equal to 1?

    Can someone get this straight?

    Sent from my Nexus One using Tapatalk 2
    no....simply put....
  8. #8  
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    Default Re: .99999=1

  9. #9  

    Default Re: .99999=1

    Quote Originally Posted by Jerry Hildenbrand View Post
    x = 0.999...
    10x = 9.999...
    10x-x = 9.999... - 0.999...
    9x = 9
    x = 1
    Nope. You start out already establishing x=.999... The next step is a pointless example that doesn't change anything. The third is right, but the forth is where you messed up. I don't know how you got to that, but that line shouldn't even exist.

    Simply worked out, 10x-x = 9. There is no 9x=9 or anything like that.
  10. Thread Author  Thread Author    #10  

    Default Re: .99999=1

    Hmmm I'm still confused

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