What's new

Welcome to Japan Reference (JREF) - the community for all Things Japanese.

Join Today! It is fast, simple, and FREE!

Hard math question! Can someone answer this?

Supervin

先輩
Joined
22 Feb 2006
Messages
309
Reaction score
17
Ah, I remember this from high school - how nostalgic. It's a classic fallacy.

Let x = 1 and y = 1.

Then x = y

Squaring all gives x^2 = y^2

So x^2 - y^2 = 0

Factorizing gives (x - y)(x + y) = 0

Dividing all by (x - y) gives (x - y)(x + y)/(x - y) = 0/(x - y)

So x + y = 0

But x = 1 and y = 1, so 1 + 1 = 0

So 2 = 0

Dividing all by 2 gives 1 = 0

Adding 1 to all therefore gives:

1 + 1 = 1
QED
 

Alex18

後輩
Joined
16 Sep 2007
Messages
9
Reaction score
0
It's a kind of a phylosophical question, not mathematical.

According to the bible, when a man and a woman marry and become united, they become one flesh together- so a man which is 1, and a woman which is also 1 become together.. guess again... that's right.. 1...
 

Mikawa Ossan

気づいたらカッパだ
Joined
17 Sep 2005
Messages
4,924
Reaction score
226
You didn't solve the question.... Try again....
Actually, I thought he did a rather good job of "solve(ing) the question".

How can 1+1=1?

Obviously the 1's involved are all of different sizes, just as some infinities are larger than others.:eek:
 

EmperorHirohito

Who is Number One?
Joined
30 Apr 2007
Messages
1,526
Reaction score
40
Think the answer may have been starring us in the face all the time but no-one could see it. Im not perfect at mathematics, I prefer physics and that sort of stuff, the general and specific theories of relativity are mind riviting things to read.
Anyway lets get back on topic lol. I think the answer lies in Biology and reproduction and a lovely little thing called Deoxyribonucleic acid, shortened to DNA. When one set of female DNA is joined by one set of male DNA, the result is one complete new set of DNA, either male or female.

Therefore 1+1 = 1. Quod Erat Demonstrandum.

Mind you another possible answer is that the numbers are Binary numbers where 1 plus 1 equals 1. Thats what MummyMia reckons.
 
Top Bottom