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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 ?

    P Offline
    P Offline
    pt1401
    wrote on last edited by
    #47

    The error is simultaneously in line 5, your misunderstanding of basic maths, and your posting of this question.

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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 ?

      Mike HankeyM Offline
      Mike HankeyM Offline
      Mike Hankey
      wrote on last edited by
      #48

      The error is I haven't had coffee yet.

      New version: WinHeist Version 2.1.0 There's a fine line between crazy and free spirited and it's usually a prescription. I'm currently unsupervised, I know it freaks me out too but the possibilities are endless.

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      • P PIEBALDconsult

        At the final step, you effectively have a=0, which means that a/a=1 on the second line is division by zero. But why were b and c introduced? It's just nonsense. Additionally, a²=b² certainly does not mean a=b.

        T Offline
        T Offline
        tayoufabrice
        wrote on last edited by
        #49

        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 1 Reply Last reply
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        • P phil o

          a - a = 0

          You cannot get anything useful from a multiplication once it has involved a zero term.

          5 x 0 = 12012 x 0

          does not mean that

          5 = 12012

          There are two kinds of people in the world: those who can extrapolate from incomplete data.

          T Offline
          T Offline
          tayoufabrice
          wrote on last edited by
          #50

          very very TRUE:thumbsup::thumbsup:

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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 ??

                                    D 1 Reply Last reply
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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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