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So How Good At Maths Are YOU?
Replies: 52Last Post July 28, 2008 10:11pm by telomere13
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Choice Votes Percent  
Infinity 9 10%
1 8 9%
0 13 14%
Negative infinity 3 3%
Indeterminate (anything) 10 11%
Undefined 23 26%
1/4 point please 22 25%
Vote Now! 88 Votes Cast
sunshineshower


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Well I know this is probably wrong but...  
1/1 = 1
2/2 = 1
3/3 = 1

therefore... a/a = 1
consequently... 0/0 = 1

Post edited at 8:17 am on July 24, 2008 by sunshineshower

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8:16 am on July 24, 2008 | Joined Dec. 2006 | 478 Days Active
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Quote: from sunshineshower at 8:16 am on July 24, 2008

Well I know this is probably wrong but...  
1/1 = 1
2/2 = 1
3/3 = 3

therefore... a/a = 1
consequently... 0/0 = 1


Check the last page... I explained how it's kind of right, but how indeterminate is sort of more right.


8:17 am on July 24, 2008 | Joined April 2008 | 48 Days Active
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sunshineshower


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Quote: from BlueCloud at 4:17 pm on July 24, 2008

Quote: from sunshineshower at 8:16 am on July 24, 2008

Well I know this is probably wrong but...
 1/1 = 1  
 2/2 = 1  
 3/3 = 3  

 therefore... a/a = 1  
 consequently... 0/0 = 1


Check the last page... I explained how it's kind of right, but how indeterminate is sort of more right.


yeah I just saw it now. gosh aren't you irritating  

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Do I dare
Disturb the universe?
In a minute there is time for decisions and revelations
which a minute will reverse - T.S. Eliot


8:18 am on July 24, 2008 | Joined Dec. 2006 | 478 Days Active
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Quote: from sunshineshower at 8:18 am on July 24, 2008

Quote: from BlueCloud at 4:17 pm on July 24, 2008

Quote: from sunshineshower at 8:16 am on July 24, 2008

Well I know this is probably wrong but...    
  1/1 = 1
  2/2 = 1
  3/3 = 3

  therefore... a/a = 1
  consequently... 0/0 = 1


 

 Check the last page... I explained how it's kind of right, but how indeterminate is sort of more right.


yeah I just saw it now. gosh aren't you irritating


Yes I am. More so when I'm bored...


8:19 am on July 24, 2008 | Joined April 2008 | 48 Days Active
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Queen Victoria II

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You know, maybe I'm not so good at "maths..."

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sakurag


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I dunno, I still go with undefined.

I'm not gunna look, so feel free to prove me wrong, but I don't recall any mathematical ANYTHING where 0/0 was defined as anything other than undefined.  Is there an application that I don't know about?

I can only slightly tie this to limits.. but I dunno if there is a good answer there either..

Like I said, feel free to bash my intelligence here.

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youatemypeanut


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Quote: from BlueCloud at 8:13 am on July 24, 2008

AND THE ANSWER..... *drum roll*

Well, there is reasoning for all of the answers.  

It could be negative/positive infinity, because anything divided by zero is undefined.

It could be zero, because zero/anything is zero.

It could be 1 because anything over itself is 1.

It could be undefined because, as we all know, dividing by 0 causes black holes and such.

 
So it is, in fact, anything. Partly because reasoning for any answer works, and partly because:

0/0 = x

0 times x = 0

In other words, what can you multiply by zero to give zero? Anything.

Well, this was fun. It's been a reeeeaally long afternoon...



I love you.
I love math(s).

10:10 am on July 24, 2008 | Joined Mar. 2008 | 110 Days Active
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pocky bot


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anyone have a ti-83 willing to sell for cheap? hehe.

no, actually, math is my worst subject. i am not really bad at it, but it's not really something i am able to excel in and plus, i don't find numbers THAT interesting.

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Event Horizon


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Quote: from BlueCloud at 8:13 am on July 24, 2008

AND THE ANSWER..... *drum roll*  

Well, there is reasoning for all of the answers.  

It could be negative/positive infinity, because anything divided by zero is undefined.  

It could be zero, because zero/anything is zero.  

It could be 1 because anything over itself is 1.  

It could be undefined because, as we all know, dividing by 0 causes black holes and such.  

 
So it is, in fact, anything. Partly because reasoning for any answer works, and partly because:  

0/0 = x  

0 times x = 0  

In other words, what can you multiply by zero to give zero? Anything.  

Well, this was fun. It's been a reeeeaally long afternoon...


Wrong.

0/0 is undefined. And if it wasn't it would be zero. 0/0 could NEVER be argued to be one.  

It couldn't be argued to be infinity either. A fraction is a more "pretty" way to write decimals.  
2/4 is .5 because 4 divided by 2 is one half of 1.
0/4 is 0 because if you have zero things and divide it by 4, you still have zero.

0/0 is undefined because if you have zero things, and you divide them by zero, you get... *real drum roll this time* undefined.  

the answer is not, "anything", it is "no value"
Some have made the argument that it is "Any value", but I do not hold to that. I mean, in a particular problem, yes, sure. But as a fraction, or a simple math question. No, it is an indeterminate function.

Post edited at 3:29 pm on July 24, 2008 by Event Horizon

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RedNoir


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It is undefined. Like in graphing. If 0 is in the denominator, it cannot be graphed.
For example: 2 over 0 = undefined

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undefined or 0 i forget

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The Economist


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A zero in the denominator always takes precedence over a zero in the numerator, so your proof is in fact incorrect. It is undefined due to the divide by zero error.

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ReelStreetlights


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Undefined.

12:53 pm on July 28, 2008 | Joined July 2008 | 36 Days Active
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What about the last line of proof? x can be multiplied by 0 to give 0, so x could be considered indeterminate. Though for practical purposes it usually doesn't make much of a statement in calculations. And I'll admit that the case for 0/0 = 1 is somewhat flawed. Still, undefined or indeterminate is, even though they mean different things, somewhat splitting hairs - we can at least agree that it doesn't provide us with a tangible value.

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The Economist


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Quote: from BlueCloud at 3:15 pm on July 28, 2008

What about the last line of proof? x can be multiplied by 0 to give 0, so x could be considered indeterminate. Though for practical purposes it usually doesn't make much of a statement in calculations. And I'll admit that the case for 0/0 = 1 is somewhat flawed. Still, undefined or indeterminate is, even though they mean different things, somewhat splitting hairs - we can at least agree that it doesn't provide us with a tangible value.

My point is that you have a divide by zero error. You could get anything because you're playing around with zero and dividing by zero. It doesn't mean x is anything.

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