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Old 11-15-2005, 07:09 PM   #11
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Default Re: 1 = 2

I dunno...Yeah, i did domething wrong... how could B/2= 1? b/2 = 0.5B OR 1/2B

Quote:
Originally Posted by draconum
Plus I dought A^2 = AB is hardly proven.

Chris
A^2 is AxA

If B=A then,

A^2=AB, since B=A and A^2 is AxA
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Old 11-15-2005, 07:14 PM   #12
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Default Re: 1 = 2

lol, i did this problem before
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Old 11-15-2005, 07:27 PM   #13
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Default Re: 1 = 2

Quote:
Originally Posted by spank_fusion
(A + B)(A - B) = B(A - B)
A + B = B
B + B = B
2B = B
2 = 1

And there you have it! One is equal to two.

Your goal? Find the error in the proof. First to find it gets a big bear hug from a mushroom.
Ok, you can't divide both sides by (A-B) because you have to multiply out the brackets first. Didn't I already say this?

Yes, as in real-life, rules need to be followed in maths. Which makes me wonder whether there is any validity to it at all. Why can't it all just fall into place instead of someone having to make up "rules"? Seems strange that you have to follow things in a certain order, decided by some person (or group), to come to the universally agreed solution, doesn't it?

Weird I think you better put us out of our misery... please. My head hurts.
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Old 11-15-2005, 07:33 PM   #14
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Default Re: 1 = 2

I feel very ill!
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Old 11-15-2005, 09:16 PM   #15
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Default Re: 1 = 2

Quote:
Originally Posted by Teencompwiz2
lol, i did this problem before
Then do it!
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Old 11-15-2005, 09:38 PM   #16
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Default Re: 1 = 2

Quote:
Originally Posted by CJ
Ok, you can't divide both sides by (A-B) because you have to multiply out the brackets first. Didn't I already say this?

Yes, as in real-life, rules need to be followed in maths. Which makes me wonder whether there is any validity to it at all. Why can't it all just fall into place instead of someone having to make up "rules"? Seems strange that you have to follow things in a certain order, decided by some person (or group), to come to the universally agreed solution, doesn't it?

Weird I think you better put us out of our misery... please. My head hurts.
Haha, I'm not making up any rules! It's a simple algebraic proof. All the steps are valid. And I'll tell you all the problem soon enough, but it's only been a day! Come on guys - THINK!
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Old 11-15-2005, 09:55 PM   #17
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Default Re: 1 = 2

I was meaning algebra (and maths) in general, not you matey.

(A + B)(A - B) = B(A - B)
A + B = B

This part doesn't make sense because you either can't divide both sides by (A-B) or you have opened up the brackets on the left.

It should be:

0 = B(A-B)
0 = BA - B^2
BA = B^2
A = B
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Old 11-15-2005, 10:11 PM   #18
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Default Re: 1 = 2

lol, we're all math heads here :P Yeah it's a pretty simple quesiton I was just getting ahead of myself for a second. But I love math anyways so I don't care.


Chris
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Old 11-15-2005, 11:04 PM   #19
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Default Re: 1 = 2

Quote:
Originally Posted by CJ
I was meaning algebra (and maths) in general, not you matey.

(A + B)(A - B) = B(A - B)
A + B = B

This part doesn't make sense because you either can't divide both sides by (A-B) or you have opened up the brackets on the left.

It should be:

0 = B(A-B)
0 = BA - B^2
BA = B^2
A = B
Oh, sorry about that.

But yeah, it's legal to divide out the (A - B) since it's a whole term.
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Old 11-16-2005, 12:01 AM   #20
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Default Re: 1 = 2

AČ = AB
AČ - BČ = AB - BČ
(A + B)(A - B) = B(A - B)
A + B = B
B + B = B
2B = B
2 = 1


The fun part comes in at step 2, when you set the entire equation to 0. Game over after it equals zero. =)
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