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Chaotix · 08-28-2008, 11:39 PM

Quote:

Originally Posted by Xynh

Well, its back to school, and the first thing I learn from my math teacher is that 2 equals 1. He told the whole class to stop his proof if anyone can find a mathematical error. Well, no one did. Here's what he did:

Let A = B.
Multply both sides by A.
Now its: A^2 = AB.
Subtrace both sides by B^2.
Now its: A^2 - B^2 = AB - B^2.
When you factor it, it becomes: (A + (A - = B (A - .
Simplify it, making it: A + B = B.
Now, since A = B, you can make it: B + B = B.
Now to simplify: 2B/B = B/B.
Anything divided by itself is one, so the final equation would be: 2 = 1.

I cannot find an error in this equation, so.. What the hell?

i dont get how it becomes this, i see it as (A)(A)-(

(

= (A)(

-(

(

and since "A = B", the equation can simplify into either A = A, B = B, A = B, or B = A

Mr.Black · 08-29-2008, 12:16 AM

If only I had a pen and paper close by D:

PugsPwn · 08-29-2008, 01:49 AM

Wow this thread is way too smart for muh freshman smartz.

Mr.Black · 08-29-2008, 01:49 AM

Quote:

Originally Posted by PugsPwn

Wow this thread is way too smart for muh freshman smartz.

I'm a freshman too lol.But I think I understand it somewhat.

PugsPwn · 08-29-2008, 01:51 AM

Quote:

Originally Posted by Mr.Black

I'm a freshman too lol.But I think I understand it somewhat.

I can grasp a bit of it I'm not stupid i just figured it would be a little snicker maybe.

Mr.Black · 08-29-2008, 01:53 AM

Quote:

Originally Posted by PugsPwn

I can grasp a bit of it I'm not stupid i just figured it would be a little snicker maybe.

My understanding of it is A=B because I ****ing can.

PugsPwn · 08-29-2008, 01:55 AM

Quote:

Originally Posted by Mr.Black

My understanding of it is A=B because I ****ing can.

Lol, A=B because there is no set values to B? I always thought A and B would differ, would that make P=T?

Mr. First Name Basis · 08-29-2008, 02:21 AM

Quote:

Originally Posted by PugsPwn

Lol, A=B because there is no set values to B? I always thought A and B would differ, would that make P=T?

For every set of equations, there are established facts. In this instance it is established that A=B. However in another problem, maybe A=-B. Technically though you could then replace each B with an A and solve however the OP did not.

The reasoning behind these 'illogical' problems is that you take the most scenic route to solving equations then you break some unforseen mathematical rule which is now hidden in the scenic mess. Most cases involve dividing by a 0 or in 'real' terms, sqrt. of a negative. Both are simple and have their flaws... but really don't prove anything except for the ability to contort the human mind.

Pulse · 08-29-2008, 02:40 AM

That's like saying a banana equals to monkey.

Nogardreyals · 08-29-2008, 02:42 AM

My teacher gave us the same exact question on the first day of my highschool math class

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08-29-2008, 12:16 AM	#22 (permalink)
Mr.Black Banned Join Date: Feb 2008 Location: Texas Posts: 1,652 Reputation: 32	If only I had a pen and paper close by D:

08-29-2008, 02:40 AM	#29 (permalink)
Pulse Banned Join Date: Jan 2008 Location: Toronto Posts: 1,885 Reputation: 22	That's like saying a banana equals to monkey.

08-29-2008, 02:42 AM	#30 (permalink)
Nogardreyals `Doll's Dishwasher Join Date: Jul 2006 Posts: 1,479 Reputation: 16	My teacher gave us the same exact question on the first day of my highschool math class