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Author Topic: 1=2 Right? Math Quiz (should be easy)  (Read 1090 times)

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Offline Hratgard

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1=2 Right? Math Quiz (should be easy)
« on: May 30, 2003, 05:35:14 am »
a^2 = a^2          
a^2 - a^2 = a^2 - a^2    subtract a^2 from both sides
a(a-a) = (a-a)(a+a)
a=2a                             remove (a-a) from both sides..
1=2

^ means  "in the power of" .. a in the power of 2 as in a*a or aa .... (norwegian : Opphøyd i 2 på godt norsk)

Tessian solved it after some thinking.. =)
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Offline Tox

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Re: 1=2 Right? Math Quiz (should be easy)
« Reply #1 on: May 30, 2003, 06:08:15 am »
Quote from: Hratgard
   
a^2 - a^2 = a^2 - a^2    subtract a^2 from both sides
a(a-a) = (a-a)(a+a)
a=2a                             remove (a-a) from both sides..
1=2


(a-a)(a+a) isn't the same as a^2 - a^2
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Offline Thedeacon

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1=2 Right? Math Quiz (should be easy)
« Reply #2 on: May 30, 2003, 06:10:26 am »
4!!!

STFU and go with 4 man!  ITS ALWAYS 4!
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Offline Hratgard

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Re: 1=2 Right? Math Quiz (should be easy)
« Reply #3 on: May 30, 2003, 06:20:07 am »
Quote
(a-a)(a+a) isn't the same as a^2 - a^2


Yes it is...

=)
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Offline daegent

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Re: 1=2 Right? Math Quiz (should be easy)
« Reply #4 on: May 30, 2003, 06:44:36 am »
Quote from: Hratgard

a(a-a) = (a-a)(a+a)
a=2a remove (a-a) from both sides.. <------ YOU CANT DO THIS


here the trick
any number*0 = 0 and this a(a-a) = (a-a)(a+a) is true cause a-a=0

but you cant remove 0 from multiplier
if the rule will allow this,  i can made same trick :
1000*0=1*0
then remove 0 and 1000=1 ... whoala ... its cooler than 1=2
you just cant remove 0 from multiplier
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Offline Feetus

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Re: 1=2 Right? Math Quiz (should be easy)
« Reply #5 on: May 30, 2003, 06:55:28 am »
Quote from: Hratgard
Quote
(a-a)(a+a) isn't the same as a^2 - a^2


Yes it is...

=)


(a-a)(a+a) = a * a + a * a - a * a - a* a = a^2 + a^2 - a^2 - a^2 = 2a^2 - 2a^2 = 0..which is close to a^2-a^2 in that it does equate to 0...but it is not a^2 - a^2. They both equate to 0, but they're not the same.

What you've done there is you've multiplied the right side of your equation by 2 on the right side...which is why you end up with 1 = 2...cause 1*2 = 2...and you fubared the right side. :P
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Offline Hratgard

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Re: 1=2 Right? Math Quiz (should be easy)
« Reply #6 on: May 30, 2003, 07:17:28 am »
Quote from: Treydor

(a-a)(a+a) = a * a + a * a - a * a - a* a = a^2 + a^2 - a^2 - a^2 = 2a^2 - 2a^2 = 0..which is close to a^2-a^2 in that it does equate to 0...but it is not a^2 - a^2. They both equate to 0, but they're not the same.

What you've done there is you've multiplied the right side of your equation by 2 on the right side...which is why you end up with 1 = 2...cause 1*2 = 2...and you fubared the right side. :P


Now see, you're wrong, what I said is correct. cause of the expression a^2+a^2-a^2-a^2 you can do as you said and make it 2a^2-2a^2 or, you can just make it to expressions which are a^2 - a^2 and a^2-a^2 whcih ofc are both zero, but you want to keep one of them just for the fun of this little equation. So infact (a-a)(a+a) is infact a^2-a^2 ....

But daegent is correct. Since both sides are equal to zero, you get a division by zero error when I "remove" (a-a) which ofc isnt leagal.
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Eldridge 'Hratgard'  Craddock - Gear
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GM-BlueOffset (on issues about NT dmg) : Hehe, I just had to laugh for myself here a bit =) One thought popped into my head "Theese guys must be pretty fed up with me by now, wonder when they will give up?".

Offline Feetus

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1=2 Right? Math Quiz (should be easy)
« Reply #7 on: May 30, 2003, 07:40:26 am »
No...you're wrong man. The statement a^2 -a^2 = (a-a)(a+a) simply is not true. Its basic algebra and if you cannt see that and don't know how to factor then you need to go do some studying.  :P

I think the expression you're looking for there is: a^2 - a^2 = (a*a) - (a*a) = a(a - a) ...that is true...but if you cannt see that this isnt true...you got problems: (a-a)(a+a) = (a*a) - (a*a) <-- not true
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Offline Piercingevil

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1=2 Right? Math Quiz (should be easy)
« Reply #8 on: May 30, 2003, 08:00:27 am »
a(a-a) = (a-a)(a+a)

Hmm, does that amount to:

2a - 2a = (a^2)+2a-2a-(a^2)

Which woould be

0 = 0?
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Offline Hratgard

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1=2 Right? Math Quiz (should be easy)
« Reply #9 on: May 30, 2003, 08:16:05 am »
Quote from: Treydor
No...you're wrong man. The statement a^2 -a^2 = (a-a)(a+a) simply is not true. Its basic algebra and if you cannt see that and don't know how to factor then you need to go do some studying.  :P

I think the expression you're looking for there is: a^2 - a^2 = (a*a) - (a*a) = a(a - a) ...that is true...but if you cannt see that this isnt true...you got problems: (a-a)(a+a) = (a*a) - (a*a) <-- not true


hmm look here Treydor

(a-a)(a+a) = a^2 - a^2 - a^2 + a^2  .. you agree on that right? (a^2 is equivialent to (a*a) which you use)
Now, as I want to make the expresion similar to the left expression in my first equation I want got get rid of some factors... The expresion you mentioned a(a-a) I'm already using in my original eqation on the left side.

a^2 - a^2 - a^2 +a^2  ... but I just want a^2 - a^2 ...
So I remove the last two, which is -a^2+a^2 right... I can removei this cause its equal to zero...

And I'm left with a^2 - a^2
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GM-BlueOffset (on issues about NT dmg) : Hehe, I just had to laugh for myself here a bit =) One thought popped into my head "Theese guys must be pretty fed up with me by now, wonder when they will give up?".

Offline Kit

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1=2 Right? Math Quiz (should be easy)
« Reply #10 on: May 30, 2003, 08:40:42 am »
w0t?
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Offline Drsnurre

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1=2 Right? Math Quiz (should be easy)
« Reply #11 on: May 30, 2003, 08:52:22 am »
/me executes Augment Intelligence within your NCU...
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Offline Wolfe

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1=2 Right? Math Quiz (should be easy)
« Reply #12 on: May 30, 2003, 09:28:19 am »
I think the math teacher would pull your ear for all the errors in equation manipulation, lol.

Most of all the "a(a-a) = (a-a)(a+a)" line is a bunch of crap and only a fool should fall for it, hehe. Even if is isnt crap, but I'd say it is since you suddenly have a 2 on one side that didnt follow to the other side. Even if both sums calculated turns out beeing 0.

Looks fishy to me but im not into math since about 10 years.

'subtract a^2 from both sides' should leave you with

 - a^2 = - a^2  (eliminate the - )

a^2 = a^2 (and your back where you started)
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Offline Fuba

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1=2 Right? Math Quiz (should be easy)
« Reply #13 on: May 30, 2003, 10:09:15 am »
/mesa brains blows up...


Hav'nt had math for like ages!
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Offline Koppo

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1=2 Right? Math Quiz (should be easy)
« Reply #14 on: May 30, 2003, 11:54:55 am »
That don't work but don't ask me to write the proof :)
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Offline Thedeacon

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1=2 Right? Math Quiz (should be easy)
« Reply #15 on: May 30, 2003, 12:03:48 pm »
jesus im fekking dmb or something.
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Offline Beansmasher

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1=2 Right? Math Quiz (should be easy)
« Reply #16 on: May 30, 2003, 12:11:51 pm »
U can solve this

a = 2a

3a = 0

a = 0

So a=2a is only true then  a = 0.
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Offline project

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1=2 Right? Math Quiz (should be easy)
« Reply #17 on: May 30, 2003, 12:25:03 pm »
the only error is in the 2nd to last line where you divide by (a-a).  as (a-a) is clearly equal to 0 you are dividing by 0 which is undefined so you shouldnt really get an answer at all but you've just "moved swiftly on" at that point hoping nobody notices  :shock:

so basically what daegent said  :wink:
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Offline Drmarkgreen

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1=2 Right? Math Quiz (should be easy)
« Reply #18 on: May 30, 2003, 01:24:14 pm »
sigh, I agree with treydor..for once :P
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1=2 Right? Math Quiz (should be easy)
« Reply #19 on: May 30, 2003, 01:31:56 pm »
Jesus christ, I barely know how to tie my shoes ;)
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Offline VILDKATT

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1=2 Right? Math Quiz (should be easy)
« Reply #20 on: May 30, 2003, 01:56:32 pm »
All i can add to this is

Huh?
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Offline Bantram

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1=2 Right? Math Quiz (should be easy)
« Reply #21 on: May 30, 2003, 04:11:33 pm »
In calculus last semester the very first page of our Calc book was mathematical proof that 1+1=0.  My math teacher got pissed off and then bought new calc books.  And yes, methinks Trey is 100% correct on that crap. (a-a)(a+a)=a^2+a^2-a^2-a^2=  2a^2-2a^2=0... right?  I dunno math ain't my best subject.
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Offline caloss2

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1=2 Right? Math Quiz (should be easy)
« Reply #22 on: May 30, 2003, 04:17:21 pm »
That's not math that's slight of hand, pretty good trick if you can pull it off though, after some beers it might of got me. ./me remembers not to split a resturant bill with Hratgard ... :wink:

And no I'm not writing the proff either,  :P
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Offline Okonkwo

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1=2 Right? Math Quiz (should be easy)
« Reply #23 on: May 30, 2003, 04:29:20 pm »
Bahahahha. That last line where you choose to collapse a^2-a^2 but leave the other is illegal.  :P If one of the expressions collapses to zero then the other must as well. Basically, what Trey said.  :twisted:
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Offline Stongrel

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1=2 Right? Math Quiz (should be easy)
« Reply #24 on: May 30, 2003, 11:15:21 pm »
Damn nerds get a life.
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