February 13, 2006

3 = 2, am I right ?

-6 = -6

9-15 = 4-10

9-15+(25/4) = 4-10+(25/4 ) // adding 25/4 to both sides:

9+(25/4)-15 = 4+(25/4)-10 //Changing the order

//(this is just like : a square + b square - two a b = (a-b)square.)
//Here a = 3, b=5/2 for L.H.S and a =2, b=5/2 for R.H.S.

. ' . (3-5/2)(3-5/2) = (2-5/2)(2-5/2)

3 - 5/2 = 2 - 5/2 //Taking positive square root on both sides

3 = 2
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2 comments:

  1. Alice Shyamala.PMar 15, 2006, 7:10:00 AM

    hello sir,
    I Sent 3=2(proofs) to my friend.she said that some mathematical fallacy in that proofs.I dont know what fallacy in that proofs.pls find and let me know sir.

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  2. Hi Alice,

    (3-5/2)(3-5/2) = (2-5/2)(2-5/2)
    3 - 5/2 = 2 - 5/2 //Taking positive square root on both sides

    This statement is the wrong one.
    -2 * -2 = 2 * 2
    but that doesn't mean -2 = 2

    Hope you got me, let me know if you need more explanation.

    Regards
    roshan

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