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  3. one equal to two ?

one equal to two ?

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  • T tayoufabrice

    a=0 never means a/a=0 (a can never be 0). a=a <=> a/a=a/a <=> 1=1 I could fix the post as : Given a C ]--;0[ U ]0;++[ (meaning 0 excluded)

    Kornfeld Eliyahu PeterK Offline
    Kornfeld Eliyahu PeterK Offline
    Kornfeld Eliyahu Peter
    wrote on last edited by
    #52

    Which means that you have an equation system and not a single equation...It's a different thing to solve...

    Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

    "It never ceases to amaze me that a spacecraft launched in 1977 can be fixed remotely from Earth." ― Brian Cox

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    • P PIEBALDconsult

      Yes, but the damage is done before that.

      Kornfeld Eliyahu PeterK Offline
      Kornfeld Eliyahu PeterK Offline
      Kornfeld Eliyahu Peter
      wrote on last edited by
      #53

      You mean, when OP went to learn math?

      Skipper: We'll fix it. Alex: Fix it? How you gonna fix this? Skipper: Grit, spit and a whole lotta duct tape.

      "It never ceases to amaze me that a spacecraft launched in 1977 can be fixed remotely from Earth." ― Brian Cox

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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

            T 1 Reply Last reply
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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
                      T Offline
                      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.

                          T Offline
                          T Offline
                          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.

                              T Offline
                              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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