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kwa wale wa mathematics!,

Discussion in 'Jukwaa la Elimu (Education Forum)' started by mnoel, Sep 13, 2012.

  1. mnoel

    mnoel Senior Member

    #1
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    solve for x,,
    2logx=x/25
    njia muhimu wakubwa!
     
  2. m

    mwanamabadiliko JF-Expert Member

    #2
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    [QUOTE=mnoel;461877. Jibu ni 100 , hili swali halina njia. Am from UDSM- College of engineering
     
  3. f

    fortunho Senior Member

    #3
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  4. m

    mwanamabadiliko JF-Expert Member

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    OLNS[/QUOTE]. Hongera na karibu coet. Ila coet ukija hiz njia zako feki tupa kule. Swali halina njia .am 4th yr coet
     
  5. NullPointer

    NullPointer JF-Expert Member

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    Jibu ni 100 ila kwa njia ya Trial&Error... Chora table, row ya kwanza 2logx, table ya pili x/25 then kwenye column anza kutumia akili ya kuzaliwa unajaza numbers hadi upate same soln... kwa sasa sina njia nyingine..... Mzumbe High School PCM
     
  6. wijei

    wijei JF-Expert Member

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    . Hongera na karibu coet. Ila coet ukija hiz njia zako feki tupa kule. Swali halina njia .am 4th yr coet[/QUOTE]

    dogo hizo MT ulizosoma hapo coet ndo unaona umesoma kila kitu.course zenyewe sijui kama zinazidi nne halafu ni MT for non major.sijui kama umesoma course ya analysis hata moja dio maana unasema hivi.
     
  7. Shark

    Shark JF-Expert Member

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    I'll be back!!!
     
  8. QUALIFIED

    QUALIFIED JF-Expert Member

    #8
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  9. NingaR

    NingaR JF-Expert Member

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    katumia"Trial and Error" Method
    teh! teh! teh!
     
  10. f

    fortunho Senior Member

    #10
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    dogo hizo MT ulizosoma hapo coet ndo unaona umesoma kila kitu.course zenyewe sijui kama zinazidi nne halafu ni MT for non major.sijui kama umesoma course ya analysis hata moja dio maana unasema hivi.[/QUOTE]

    you have 2 b srous
     
  11. Mbwiga88

    Mbwiga88 JF-Expert Member

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    hiyo ni differential eqn,...Ilboru 4m 6 PCM
     
  12. mnoel

    mnoel Senior Member

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    swali lolote lenye jibu lina njia wakubwa!!
    Chemsheni ubongo!!
     
  13. Good Guy

    Good Guy JF-Expert Member

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    wewe acha kuotea vitu na kudanganya umma! Unaweza nambia order ya hiyo eqn if its wat you say it is?
     
  14. l

    lugano5 JF-Expert Member

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    hilo swali balaa nilienda shule fulani kupiga tempo nikapewa na madogo ila nilifoji njia ikaja 100.....kwani niliona nitadhalilika hapa mjini na ukizingatia nimepga pcm alaf nasoma eng..........
     
  15. K

    King Kalu G Member

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    un42natry we dont know x so we cant solve 4 him
     
  16. Shark

    Shark JF-Expert Member

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    Sep 14, 2012
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    I am back now!!

    2Logx = x/25

    Divide by x both sides
    (2/X)logx = 1/25

    logx [SUP](2/x)[/SUP] = 1/25


    Remove log sign
    10[SUP](1/25) [/SUP]= x[SUP](2/x)

    [/SUP]Take √ both sides(but √ means power 1/2)
    so, from √10[SUP](1/25) [/SUP]=√x [SUP](2/x)[/SUP]

    we will get
    10[SUP]1/25(1/2)[/SUP] = x[SUP]2/x(1/2)

    [/SUP]simplify on exponents
    10[SUP]1/50[/SUP] =x[SUP]1/x

    [/SUP]10[SUP]2/2*1/50[/SUP] =x[SUP]1/x[/SUP] note 2/2=1, so will not change the value of exponent
    10[SUP]2(1/100)[/SUP] =x[SUP]1/x

    [/SUP]100[SUP]1/100[/SUP] = x [SUP]1/x[/SUP]

    x = 100
    O-Level, Azania '96 - '99

     
  17. JOAQUEM

    JOAQUEM JF-Expert Member

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    Good nimekubali
     
  18. ndetichia

    ndetichia JF-Expert Member

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    mmmmmhhhhh hiyo lugha jf kazi ipo kwa mamod
     
  19. Shark

    Shark JF-Expert Member

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    Aminia mkuu,
    Ulivyosema you will be back nlifikiri umeingia mitini!!
     
  20. ndetichia

    ndetichia JF-Expert Member

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    mboni inaonekana kama copy and paste hiyo mzee hasa kuanzia hapo kwenye bluu
     
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