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  3. one equal to two ?

one equal to two ?

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  • R R Giskard Reventlov

    tayoufabrice wrote:

    Where is the error ?

    In between your ears: obviously the answer is 42.

    T Offline
    T Offline
    tayoufabrice
    wrote on last edited by
    #51

    the answer is 42 :laugh: :laugh:

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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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