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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 ?

    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
      0
      • 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!

                  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 ?

                    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.

                      T 1 Reply Last reply
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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...... ??

                          M 1 Reply Last reply
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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.

                            T 1 Reply Last reply
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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.

                                    T 1 Reply Last reply
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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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