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#1 2005-10-13 00:06:08

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,395

Proof :- e equal to one

Proof :- e equal to one
Theorem: e=1
Proof:
2*e = f
2^(2*pi*i) x e^(2*pi*i) = f^(2*pi*i)
We know e^(2*pi*i) = 1

Therefore:
2^(2*pi*i) = f^(2*pi*i)
2=f
Thus:
e=1


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#2 2005-10-13 16:12:34

Jai Ganesh
Administrator
Registered: 2005-06-28
Posts: 48,395

Re: Proof :- e equal to one

You are right, this was a proof I found in a Mathematics Jokes page.
It is obviously faulty, and you have said where the error lies. I too had figured it out, but left it open for discussion.


It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#3 2008-04-04 14:57:42

simron
Real Member
Registered: 2006-10-07
Posts: 237

Re: Proof :- e equal to one

a=b
a^2=ab
(a^2)-(b^2)=ab-(b^2)
(a+b)(a-b)=b(a-b)
a+b=b
b+b=b (substitution from equation 1)
1+1=1
2=1!!!


Linux FTW

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#4 2008-04-04 15:41:04

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

Re: Proof :- e equal to one

Ew! Division-by-zero fallacy “proofs” are so stale!

Last edited by JaneFairfax (2008-04-04 23:12:58)

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#5 2008-04-06 12:38:44

John E. Franklin
Member
Registered: 2005-08-29
Posts: 3,588

Re: Proof :- e equal to one

Nice point Jane&Simron.
Should certain algebraic steps bring along
domain baggage when utilizing them?
So dividing by (a-b) means that
if a - b is zero then the results following
that step are bogus?


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