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  3. one equal to two ?

one equal to two ?

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  • T tayoufabrice

    Let read this : 1=1 a=a a²=a² a²-a²=a²-a² a(a-a)=(a+a)(a-a) a=a+a a(1)=a(1+1) 1=1+1 1=2 Where is the error ?

    R Offline
    R Offline
    RedDk
    wrote on last edited by
    #54

    This is best asked here: http://www.codeproject.com/script/Answers/List.aspx?tags=900&alltags=true[^]

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    • P PIEBALDconsult

      Abbott and Costello said it better.

      M Offline
      M Offline
      Mark_Wallace
      wrote on last edited by
      #55

      PIEBALDconsult wrote:

      Abbott and Costello_, who were on first,_ said it better.

      It was missing something.

      I wanna be a eunuchs developer! Pass me a bread knife!

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      • T tayoufabrice

        Let read this : 1=1 a=a a²=a² a²-a²=a²-a² a(a-a)=(a+a)(a-a) a=a+a a(1)=a(1+1) 1=1+1 1=2 Where is the error ?

        L Offline
        L Offline
        Lost User
        wrote on last edited by
        #56

        welcome to the lounge. I know this isn't quite your first post - but nearly. And I would like to apologise for the negativity your post received. For someone who hadn't seen that 'proof' before it may have been interesting - as you can see, not only have the majority here seen it (more than once!) but they like to stuff it down your throat - whether to big-note themselves or simply in an attempt to belittle you we cannot tell. They should be ashamed. Merry Xmas

        PooperPig - Coming Soon

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        • T tayoufabrice

          Let read this : 1=1 a=a a²=a² a²-a²=a²-a² a(a-a)=(a+a)(a-a) a=a+a a(1)=a(1+1) 1=1+1 1=2 Where is the error ?

          M Offline
          M Offline
          Mitchell J
          wrote on last edited by
          #57

          How about this... ;P Start with this: 1/9 = 1/9 Then convert one side to decimal equivalent (which is infinitely recurring) 1/9 = 0.11111111111111111111111111111111111111111111111111111111...(etc etc) Then multiply both sides by nine 1 = 0.9999999999999999999999999999999999999999999999999999999999...(etc etc) Therefore, 1 is equal to 0.9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999...(where the 9's are in infinite recursion). And yes, this actually is mathematically correct.

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          • L Lost User

            welcome to the lounge. I know this isn't quite your first post - but nearly. And I would like to apologise for the negativity your post received. For someone who hadn't seen that 'proof' before it may have been interesting - as you can see, not only have the majority here seen it (more than once!) but they like to stuff it down your throat - whether to big-note themselves or simply in an attempt to belittle you we cannot tell. They should be ashamed. Merry Xmas

            PooperPig - Coming Soon

            T Offline
            T Offline
            tayoufabrice
            wrote on last edited by
            #58

            Thank you Max and happy new Xear

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            • M Mitchell J

              How about this... ;P Start with this: 1/9 = 1/9 Then convert one side to decimal equivalent (which is infinitely recurring) 1/9 = 0.11111111111111111111111111111111111111111111111111111111...(etc etc) Then multiply both sides by nine 1 = 0.9999999999999999999999999999999999999999999999999999999999...(etc etc) Therefore, 1 is equal to 0.9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999...(where the 9's are in infinite recursion). And yes, this actually is mathematically correct.

              T Offline
              T Offline
              tayoufabrice
              wrote on last edited by
              #59

              I agree but here 1/9 = 0.111111111111111111111111...... is not really true ; we lost 0.000000000000000000000.......9 I could write 1/9~= 0.111111111111111111111111...... then 1 ~= 0.9999999999999999999999999...... ??

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              • T tayoufabrice

                I agree but here 1/9 = 0.111111111111111111111111...... is not really true ; we lost 0.000000000000000000000.......9 I could write 1/9~= 0.111111111111111111111111...... then 1 ~= 0.9999999999999999999999999...... ??

                M Offline
                M Offline
                Mitchell J
                wrote on last edited by
                #60

                tayoufabrice wrote:

                1/9 = 0.111111111111111111111111...... is not really true ; we lost 0.000000000000000000000.......9

                Wish I could agree, but I can't... read all about it[^] :-D Even google 0.999999999999999 = 1[^] if you're still unconvinced.

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                • M Mitchell J

                  tayoufabrice wrote:

                  1/9 = 0.111111111111111111111111...... is not really true ; we lost 0.000000000000000000000.......9

                  Wish I could agree, but I can't... read all about it[^] :-D Even google 0.999999999999999 = 1[^] if you're still unconvinced.

                  T Offline
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                  tayoufabrice
                  wrote on last edited by
                  #61

                  Ah là là :laugh: Mathematics !! (French laughing)

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                  • T tayoufabrice

                    Let read this : 1=1 a=a a²=a² a²-a²=a²-a² a(a-a)=(a+a)(a-a) a=a+a a(1)=a(1+1) 1=1+1 1=2 Where is the error ?

                    D Offline
                    D Offline
                    Daniel Pfeffer
                    wrote on last edited by
                    #62

                    a(a-a) = (a+a)(a-a) // divide by (a-a), i.e. divide by 0 a = a+a Division by zero is a no-no because it can lead to "impossible" results like the above.

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                    • D Daniel Pfeffer

                      a(a-a) = (a+a)(a-a) // divide by (a-a), i.e. divide by 0 a = a+a Division by zero is a no-no because it can lead to "impossible" results like the above.

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                      tayoufabrice
                      wrote on last edited by
                      #63

                      I could fix the post as : Given a C ]--;0[ U ]0;++[ (meaning 0 excluded) Now ??

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                      • T tayoufabrice

                        I could fix the post as : Given a C ]--;0[ U ]0;++[ (meaning 0 excluded) Now ??

                        D Offline
                        D Offline
                        Daniel Pfeffer
                        wrote on last edited by
                        #64

                        The value of a is irrelevant; a - a == 0, and factoring out a - a is division by 0, which is forbidden. I am not a mathematician, so I don't know if it is possible to create a self-consistent arithmetic in which division by 0 does not result in nonsensical results. All I know is that in the arithmetic I learnt in school it is forbidden.

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                        • D Daniel Pfeffer

                          The value of a is irrelevant; a - a == 0, and factoring out a - a is division by 0, which is forbidden. I am not a mathematician, so I don't know if it is possible to create a self-consistent arithmetic in which division by 0 does not result in nonsensical results. All I know is that in the arithmetic I learnt in school it is forbidden.

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                          T Offline
                          tayoufabrice
                          wrote on last edited by
                          #65

                          Sure ! :laugh: number can never be divided by zero 0 ; even 0/0 :confused: It is the real error of my process

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