Home | Community | Message Board



Please support our sponsors.

General Interest >> Philosophy, Sociology & Psychology

Welcome to the Shroomery Message Board! You are experiencing a small sample of what the site has to offer. Please login or register to post messages and view our exclusive members-only content. You'll gain access to additional forums, file attachments, board customizations, encrypted private messages, and much more!

Jump to first unread post. Pages: 1
OfflineSpecialEd
+ one

Registered: 01/30/03
Posts: 6,220
Loc: : Gringo
Last seen: 1 year, 7 months
Math Problem...there is only one number!!!
    #2403828 - 03/04/04 08:03 PM (12 years, 8 months ago)

Assume that A = B


1.  A*A = B * A

Distributive


2.  A^2 - B^2 = BA - B^2

Subtract B^2 from both sides


3.  (A + B)(A - B) = B(A - B)

Factor


4.  ((A + B)(A - B))/(A - B) = (B(A - B))/(A -B)

Divide both sides by (A - B)


5.  A + B = B                   

A = B so A + B = 2B


6.  2B = B         


7.  2 = 1                     

Divide both sides by B         


8.  1 = 0                     

Subtract one from both sides.



1 = 0,  all numbers equal zero.



10 points for someone who tells me what is wrong here.  :lol: :lol:


--------------------
"Plus one upvote +1..."
--- //
-- :meff:
  /l_l\/
--\-/----


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineAtomisk
all forms areself awareness

Registered: 02/09/04
Posts: 164
Loc: jungle of love
Last seen: 12 years, 5 months
Re: Math Problem...there is only one number!!! [Re: SpecialEd]
    #2403858 - 03/04/04 08:12 PM (12 years, 8 months ago)

my cats breath smells like cat-food.


--------------------
o house-builder! thou art seen. thou shalt build no house again. all thy rafters are broken. thy ridge-pole is shattered.


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleLetto
Load Universeinto Cannon. Aimat Brain. Fire.
Registered: 12/13/02
Posts: 2,321
Re: Math Problem...there is only one number!!! [Re: SpecialEd]
    #2403886 - 03/04/04 08:21 PM (12 years, 8 months ago)

The first step is actually the substitution property, but that doesn't really make a difference. I assume the error comes from when you divide by (A-B). When you divide by variables (which cancels out the term), you lose a solution to the problem. This also happens when you divide 2B = B by B. The solution to this equation is only 0.

Also, when you have denominators, you have to make sure you don't get 0 on the bottom, which is exactly what you're doing when you divide by (A-B), because A-A = 0. Dividing by 0 is undefined. I'm not a mathematician, so somebody correct me if I'm wrong.


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleRavus
Not an EggshellWalker
 User Gallery

Registered: 07/18/03
Posts: 7,991
Loc: Cave of the Patriarchs
Re: Math Problem...there is only one number!!! [Re: Atomisk]
    #2403892 - 03/04/04 08:23 PM (12 years, 8 months ago)

My geometry teacher gave us this freshman year. I vaguely remember it, but after scanning it, since A = B, it'd be 1 minus 1, AKA 0. You can't divide by zero, otherwise all numbers would be equal to zero.


--------------------
So long as you are praised think only that you are not yet on your own path but on that of another.


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleRavus
Not an EggshellWalker
 User Gallery

Registered: 07/18/03
Posts: 7,991
Loc: Cave of the Patriarchs
Re: Math Problem...there is only one number!!! [Re: Ravus]
    #2403893 - 03/04/04 08:23 PM (12 years, 8 months ago)

Ah, posted it before me. *shakes fist angrily*


--------------------
So long as you are praised think only that you are not yet on your own path but on that of another.


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleLetto
Load Universeinto Cannon. Aimat Brain. Fire.
Registered: 12/13/02
Posts: 2,321
Re: Math Problem...there is only one number!!! [Re: Ravus]
    #2403898 - 03/04/04 08:24 PM (12 years, 8 months ago)

:razz:  :smile2:


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineSpecialEd
+ one

Registered: 01/30/03
Posts: 6,220
Loc: : Gringo
Last seen: 1 year, 7 months
Re: Math Problem...there is only one number!!! [Re: Ravus]
    #2404178 - 03/04/04 09:42 PM (12 years, 8 months ago)

Yeah, MMerletto gets the full ten points, but I will still give you five.


--------------------
"Plus one upvote +1..."
--- //
-- :meff:
  /l_l\/
--\-/----


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibletrendalM
point of inflection
Male User Gallery

Folding@home Statistics
Registered: 04/17/01
Posts: 19,376
Loc: Ontario, Canada
Re: Math Problem...there is only one number!!! [Re: SpecialEd]
    #2404248 - 03/04/04 09:59 PM (12 years, 8 months ago)

Without looking at the rest of the thread...

Your error is in step 4. You cannot divide by 0, and since A = B the term (A - B) equals 0, thus you cannot divide by (A - B).


--------------------
You're here because you know something.
What you know you can't explain,
But you feel it;
You've felt it your entire life.
That there's something wrong with the world.
You don't know what it is, but it's there....
Like a splinter in your mind...
Driving you mad.


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibleLetto
Load Universeinto Cannon. Aimat Brain. Fire.
Registered: 12/13/02
Posts: 2,321
Re: Math Problem...there is only one number!!! [Re: SpecialEd]
    #2404250 - 03/04/04 09:59 PM (12 years, 8 months ago)

What are these points? Can I redeem them for stuffed animals or something?


Post Extras: Print Post  Remind Me! Notify Moderator
InvisibletrendalM
point of inflection
Male User Gallery

Folding@home Statistics
Registered: 04/17/01
Posts: 19,376
Loc: Ontario, Canada
Re: Math Problem...there is only one number!!! [Re: trendal]
    #2404254 - 03/04/04 10:00 PM (12 years, 8 months ago)

Aw nuts. MMerletto beat me to it :smirk:


--------------------
You're here because you know something.
What you know you can't explain,
But you feel it;
You've felt it your entire life.
That there's something wrong with the world.
You don't know what it is, but it's there....
Like a splinter in your mind...
Driving you mad.


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineSpecialEd
+ one

Registered: 01/30/03
Posts: 6,220
Loc: : Gringo
Last seen: 1 year, 7 months
Re: Math Problem...there is only one number!!! [Re: Letto]
    #2404299 - 03/04/04 10:12 PM (12 years, 8 months ago)

Quote:

What are these points? Can I redeem them for stuffed animals or something?




Next time you make a purchase, and they ask "Cash, Check, or Credit Card," say "Actually, I was going to use SpecialEd points, I will pay the difference in cash."


Trendal, I will give you five as well.


--------------------
"Plus one upvote +1..."
--- //
-- :meff:
  /l_l\/
--\-/----


Post Extras: Print Post  Remind Me! Notify Moderator
Invisibletekramrepus
Female User Gallery
Registered: 02/20/02
Posts: 2,229
Re: Math Problem...there is only one number!!! [Re: SpecialEd]
    #2405110 - 03/05/04 01:42 AM (12 years, 8 months ago)

okay, without reading the replies, I'l have to say...

The first step is actually the substitution property, but that doesn't really make a difference. I assume the error comes from when you divide by (A-B). When you divide by variables (which cancels out the term), you lose a solution to the problem. This also happens when you divide 2B = B by B. The solution to this equation is only 0.

Also, when you have denominators, you have to make sure you don't get 0 on the bottom, which is exactly what you're doing when you divide by (A-B), because A-A = 0. Dividing by 0 is undefined. I'm not a mathematician, so somebody correct me if I'm wrong.


Post Extras: Print Post  Remind Me! Notify Moderator
Invisibletekramrepus
Female User Gallery
Registered: 02/20/02
Posts: 2,229
Re: Math Problem...there is only one number!!! [Re: tekramrepus]
    #2405116 - 03/05/04 01:43 AM (12 years, 8 months ago)

damnit, I wasnt the first one to get it :laugh:


Post Extras: Print Post  Remind Me! Notify Moderator
OfflineShroomerious
OO
Male

Registered: 07/27/03
Posts: 534
Last seen: 6 years, 5 months
Re: Math Problem...there is only one number!!! [Re: SpecialEd]
    #2405223 - 03/05/04 02:06 AM (12 years, 8 months ago)

This is interesting if you look at it from another point of view. That it is another proof of the specific kind of maths, because if we were to divide by (A-B) then one of it's basic principles would be violated and thus all numbers would equal zero which is unacceptable from this specific kind of maths. Of course the fact that we can not divide by 0 is one of the basic principles and doesn't need proof, but so to speak...


--------------------


Post Extras: Print Post  Remind Me! Notify Moderator
Jump to top. Pages: 1

General Interest >> Philosophy, Sociology & Psychology

Similar ThreadsPosterViewsRepliesLast post
* Phil math problem
( 1 2 3 all )
AnastomosisJihad 2,272 47 01/13/08 08:29 PM
by DieCommie
* How do we know math is universal?
( 1 2 3 4 all )
Scarfmeister
3,259 75 10/07/08 01:31 AM
by DieCommie
* Girlfriend Problems
( 1 2 3 4 5 all )
lolwhut 4,253 90 07/22/07 04:20 PM
by Icelander
* Why do mathematicians prefer math over other subjects?
( 1 2 all )
Anonymous 2,173 28 02/05/04 01:48 AM
by automan
* If there is no problem, then that is the problem, ... if you are looking for it... Gomp 441 4 12/22/06 07:50 PM
by PhanTomCat
* Math: discovered or invented?
( 1 2 3 4 5 all )
SneezingPenis
6,002 86 06/24/15 05:56 PM
by PsilocybinMan
* The subject of Math And Love....(what is 0?)
( 1 2 3 4 all )
tnecseda 2,549 60 09/04/04 08:58 AM
by lovelight
* Can Math Enlighten?
( 1 2 all )
appleorange 1,329 20 03/24/08 07:51 AM
by BlueCoyote

Extra information
You cannot start new topics / You cannot reply to topics
HTML is disabled / BBCode is enabled
Moderator: Middleman, CosmicJoke, Diploid, Jokeshopbeard, DividedQuantum
824 topic views. 0 members, 4 guests and 1 web crawlers are browsing this forum.
[ Toggle Favorite | Print Topic | Stats ]
Search this thread:
Out-Grow.com - Mushroom Growing Kits & Supplies
Please support our sponsors.

Copyright 1997-2016 Mind Media. Some rights reserved.

Generated in 0.048 seconds spending 0.003 seconds on 14 queries.