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Mathemagic | 20 Nov, 2009

Discussion in '$1 Daily Competition' started by shabbir, Nov 20, 2009.

  1. shabbir

    shabbir Administrator Staff Member

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    You have a custom operation ^ and the following equation x ^ y = 2x + y,

    Now what is the value of a in 2 ^ a = a ^ 3

    BTW I also don't know the answer and is a question of some paper.
     
  2. pankaj.sea

    pankaj.sea New Member

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    a=1 :thinking:
     
  3. shabbir

    shabbir Administrator Staff Member

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    Would you explain the answer
     
  4. sameer_havakajoka

    sameer_havakajoka New Member

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    x^y = 2x +y

    2^a = a^3

    =======================

    2^a = 2(2)+a
    2^a = 4+a

    =================

    a^3 = 2(a)+3

    ===============

    4+a = 2a+3

    2a-a=4-3

    a=1
     
  5. pankaj.sea

    pankaj.sea New Member

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    Yes! This is same or the correct the explanation of my answer!
     

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