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Add to my del.icio.us 1+1=1, Is it possible? |
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| 1+1=1, Is it possible? |
 Aug 22 2002, 09:52 PM
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#1
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 Boss, my code's compiling (xkcd)  Group: Admins Posts: 10,440 Joined: 19-September 01 Member No.: 1   |
Can 1+1 equal 1 and still be mathemetically correct? :)
--------------------    Things that I don't suck at: Photography (flickr, JPG Mag), "Don't bail; the best gold is at the bottom of barrels of crap!" -Randy Pausch I have people-skills goddamnit! What is wrong with you people!!! | www.skyrill.com |
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Aug 23 2002, 07:02 AM
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#2
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 The old timer  Group: ++Member Posts: 2,740 Joined: 2-November 01 From: Manchester uk Member No.: 3  |
Found this solution on doing a search.
Given a = b then this implies a - b + b = b Now divide both sides by (a-b) and we have a - b + b b --------- = ----- (a-b) (a-b) Then reduce the left side to be b b 1 + ----- = ----- (a-b) (a-b) Then subtract b/(a-b) from both sides and you have 1 = 0 Then add one to both sides and you have 1 + 1 = 1 Is that the way you did it BOB -------------------- REGARDS
 Sys.info Inspiron 530 Intel® Core™ 2 Duo E8400 processor (3.00GHz, 1333MHz, 6MB cache) Video Card 256MB ATI® Radeon™ HD 2400 XT graphics card Memory 3072MB 800MHz Dual Channel DDR2 SDRAM [2x1024 + 2x512] built wireless and bluetooth |
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Aug 23 2002, 08:39 AM
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#3
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Boss, my code's compiling (xkcd) Group: Admins Posts: 10,440 Joined: 19-September 01 Member No.: 1 |
Mine was a bit different. Anyway, do you happen to know where the "grey area" is in your solution? :)
-------------------- Things that I don't suck at: Photography (flickr, JPG Mag), "Don't bail; the best gold is at the bottom of barrels of crap!" -Randy Pausch I have people-skills goddamnit! What is wrong with you people!!! | www.skyrill.com |
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Aug 23 2002, 08:53 AM
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#4
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The old timer Group: ++Member Posts: 2,740 Joined: 2-November 01 From: Manchester uk Member No.: 3 |
NO! I know there is a flaw in it.
 Quote from Dr.Eathen Well the first thing to say is that this cannot be done. You cannot use CORRECT mathematics to prove something that is untrue. Secondly, yes I have constructed a proof. My challenge to you is to find the flaw. (I have seen more sophisticated proofs where the flaw is harder to find, but each one essentially has the same flaw that mine has.) BOB -------------------- REGARDS
Sys.info Inspiron 530 Intel® Core™ 2 Duo E8400 processor (3.00GHz, 1333MHz, 6MB cache) Video Card 256MB ATI® Radeon™ HD 2400 XT graphics card Memory 3072MB 800MHz Dual Channel DDR2 SDRAM [2x1024 + 2x512] built wireless and bluetooth |
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Aug 23 2002, 11:57 AM
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#5
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Boss, my code's compiling (xkcd) Group: Admins Posts: 10,440 Joined: 19-September 01 Member No.: 1 |
Indeed! The grey area is the part where you subtract 'a' from 'b' because technically you're dividing by a zero.
Here's another 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 2b = b 2 = 1 * ^: To the power of 
-------------------- Things that I don't suck at: Photography (flickr, JPG Mag), "Don't bail; the best gold is at the bottom of barrels of crap!" -Randy Pausch I have people-skills goddamnit! What is wrong with you people!!! | www.skyrill.com |
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Aug 23 2002, 12:57 PM
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#6
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The old timer Group: ++Member Posts: 2,740 Joined: 2-November 01 From: Manchester uk Member No.: 3 |
It is a very long time since I was learning maths,Here is a site with a few maths puzzles
http://mcraefamily.com/MathHelp/Puzzle.htm BOB -------------------- REGARDS
Sys.info Inspiron 530 Intel® Core™ 2 Duo E8400 processor (3.00GHz, 1333MHz, 6MB cache) Video Card 256MB ATI® Radeon™ HD 2400 XT graphics card Memory 3072MB 800MHz Dual Channel DDR2 SDRAM [2x1024 + 2x512] built wireless and bluetooth |
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