> a^2 = b^2
> bukan berarti selalu a = b
>
> Terdapat kekeliruan disaat:
>
> (4 - 9/2) ^ 2 = (-1/2)^2
> (5 - 9/2) ^2 = (1/2)^2
>
> berarti -1/2 <> 1/2 kan?
>
> ----------
> From: Nasrul Indroyono[SMTP:[EMAIL PROTECTED]]
> Sent: Tuesday, December 22, 1998 5:35 AM
> Subject: Proof of Theorem that 4=5 (joke for christmas)
>
>
> Does anybody know what's wrong with this theorem ?
>
> Theorem: 4 = 5
> Proof:
> 16 - 36 = 25 - 45
> 4^2 - 9*4 = 5^2 - 9*5
> 4^2 - 9*4 + 81/4 = 5^2 - 9*5 + 81/4
> (4 - 9/2)^2 = (5 - 9/2)^2
> 4 - 9/2 = 5 - 9/2
> 4 = 5
>
>
>
application/ms-tnef
