Posted by: mostwanted | Wednesday, February 8, 2006

3 = 2 Proved … :)

It is said that the late, great, Indian mathematician Mr. Ramanujam found a way to prove 3 = 2 but never disclosed it to anyone during his lifetime and this little jem was found in his personal journal/dairy.

-6 = -6
or
9-15 = 4-10

Adding 25/4 to both sides:

9-15 + 25/4 = 4-10 + 25/4

Changing the order

9 + 25/4 – 15 = 4 + 25/4 – 10

[This is just like ‘a’ square + ‘b’ square – two a b = (a-b) the whole square.]

Hence as per the last step I is a = 3, b = 5/2 for L.H.S and a = 2, b = 5/2 for R.H.S.

So it can be expressed as follows:

(3 – 5/2) (3 – 5/2) = (2 – 5/2) (2 – 5/2)

Taking positive square roots on both sides:

3 – 5/2 = 2 – 5/2
or
3 = 2 !!

Seriously, this just goes to show that ANYTHING is possible.

{ via Manish Kumar }

—–

2-16-06 EDIT: “What’s wrong with this proof? Taking square roots requires the use of the double plus-or-minus sign (or absolute values). In this case, the plus sign gives an extraneous result, and the minus sign is the one that gives the right conclusion.”

In other words, I guess it is not really a legit proof. It works to an extent but not completely for mathematical accuracy and as such doesnt prove anything. 😦

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Responses

  1. You realize there’s a problem with this, right? When in school, all of us (at least the ones girls didn’t like all too well) were besotted by a proof which showed 1 + 1 = 0 (and the like).

    Turns out we couldn’t hit it with the geeky chicks (yet again):

    http://mathforum.org/dr.math/faq/faq.false.proof.html

    🙂

  2. haha point taken Nik. i guess i shouldve done a little more research and looked into the validity of such a claim.

    bro, i cant imagine you having any problems with the ladies. afterall you are a pimp of sorts and everyone likes you. 😛

    anyways, post updated!


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