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mathematicians look here - if possible correct me please with detailed explanations

Discussion in 'Jukwaa la Elimu (Education Forum)' started by MAHENDEKA, Sep 25, 2010.

  1. MAHENDEKA

    MAHENDEKA Senior Member

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    Sep 25, 2010
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    p { margin-bottom: 0.08in; }

    1+1=1
    Proof
    Let a= 1…………….(i)
    Multiply by a in both sides
    a×a = 1×a…………..(ii)
    From eqn (ii) reduce 1 in both sides
    a²-1 = a-1………………(iii)
    But a²-1 = (a+1)(a-1) -This is factorization of quadratic equation
    There fore
    (a +1)(a-1) = (a-1)…….(iv)
    Divide by (a-1) both sides
    (a+1)(a-1) = (a-1)
    (a-1) (a-1)
    (a+1) = 1…………………..(v)
    But from equation number (i) we let a=1.Take it and substitute into equation number (v)
    Hence
    1 +1 = 1
     
  2. Mtazamaji

    Mtazamaji JF-Expert Member

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    Peleka huu uzi kwenye education
     
  3. SMU

    SMU JF-Expert Member

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    I dont see an 'a' in the formula you are trying to prove. Labda ungesema, let 1= a (In which case you would be asuming that we dont know what '1' is but we know what an 'a' is!).
     
  4. Msanii

    Msanii JF-Expert Member

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    Aaaaaargh! maluweluwe.
    But MAHENDEKA nimeipenda hiyo trick yako na formula
     
  5. Bigirita

    Bigirita JF-Expert Member

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    Hanna Kitu hapo! Hesabu za kienyeji.
     
  6. Preta

    Preta JF-Expert Member

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    sijui ni hiki kileo....mbona nahisi kizunguzungu
     
  7. Msanii

    Msanii JF-Expert Member

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    mzee wa kutegua mabomu umestukia tunapelekwa chaka eeeh
    kula senki hapo chini
    The Following User Says Thank You to SMU For This Useful Post:

    Msanii (Today) ​
     
  8. cpt

    cpt JF-Expert Member

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    You let a=1,so wen u divide by (a-1),means dat you divide by zero both sides,mathematicaly dis is incorrect and the answer is undefined and not 1 as u show us!
     
  9. DMussa

    DMussa JF-Expert Member

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    hili ndo tatizo la kudhania hesabu inaendeshwa kwa assumptions....

    If you are trying to prove 1+1=1 why are you assuming 1 = a? kwani ukifanya ivo tayari equation yako inakuwa a+a=a so what the hell!?
     
  10. K

    Kituko JF-Expert Member

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    ulichofanya wala sio hesabu, ni kubadilisha 1kuwa 'a' na baadae kuibadilisha 'a' kuwa 1
     
  11. Ng'wanangwa

    Ng'wanangwa JF-Expert Member

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    BIG NO!!!

    The answer Must be true for all numbers

    Why?

    If I let a=2, sipati 1+1=1

    Kwa hiyo kwa maoni yangu hesabu yako ni sawa na maji+maji = ?
     
  12. Ng'wanangwa

    Ng'wanangwa JF-Expert Member

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    Fantastic
     
  13. M

    Matarese JF-Expert Member

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    Big up Mahendeka, good thinking!
    But there are several problems with ur so called proof.
    1. Basically what you are doing is NOT proving but verifying that 1+1=1. There are no any analytical tools (theorems, lemmas or conjectures) that support what you are doing!

    2. A proof as one of the readers put it must be true for all values ( and not necessarily numbers!) not just for some values. Your arguments are untrue when a<0.

    3. The statement let a=1, is equivalent to writing a-1=0, so division by itself meand you are dividing by 0 which is indeterminate form, unless you would have put for a not equal to 1, but which contradicts your assunption that a=1!

    However this is good thinking, and that is what maths needs!
     
  14. m

    mwita ke mwita JF-Expert Member

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    mzee asumption ziko kwenye physics
     
  15. E=mcsquared

    E=mcsquared JF-Expert Member

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    Huu utoto awapelekee darasa la saba, very poor reasoning. Kwani wewe hujui kuwa 1x0= 2x0=3x0=4x0......... etc?
     
  16. Kivumah

    Kivumah JF-Expert Member

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    ....the way i see the problem is the Problem itself. Mathematics is the Study of Numbers only, not letters
     
  17. introvert

    introvert JF-Expert Member

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    Mmh.. Ivi unatakiwa u-prove definition au theory?! Au hiyo ni Boolean..
     
  18. Pape

    Pape JF-Expert Member

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    lol, very wrong idea...you were you saying 1+1=1?, why did you assume that a= 1? why you didnt assume that 1=a?
     
  19. k

    kasyabone tall JF-Expert Member

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    Mtihani mwema kaka, Kwa mfumo huu huwezi kwepa F ya Hisabati. Tutaonana Kantalamba HKL
     
  20. J

    Jafar JF-Expert Member

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    Kazi kweli kweli
     
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