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05-08-2006, 09:35 AM
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#1 (permalink)
| Aya Matsuura is awesome
Join Date: Nov 2002 Location: Trieste, Friuli-Venezia Giulia Age: 20 Posts: 15,282
| Mathematical problem (attempt 2) Yeah, I was wrong, so... 0=1-1+1-1+1-1+1-1+1-1+1-1+1-1+...
Right-hand side (RHS)=1-(1-1)-(1-1)-(1-1)-(1-1)-(1-1)-(1-1)-...
RHS=1-0-0-0-0-0-0-...
RHS=1
But we started with LHS=RHS.
Therefore LHS=1.
Therefore 0=1. *
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05-08-2006, 09:42 AM
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#2 (permalink)
| BattleForums Junior Member
Join Date: Dec 2004 Location: your shower Age: 24 Posts: 89
| huh?? dude that aint cool... i'm way too gone to try and solve that!
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:rainfro :doped PLURR!!! :doped :rainfro |
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05-08-2006, 10:13 AM
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#3 (permalink)
| Aya Matsuura is awesome
Join Date: Nov 2002 Location: Trieste, Friuli-Venezia Giulia Age: 20 Posts: 15,282
| Cool people won't fade in the eyes of a challenge.*
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05-08-2006, 10:16 AM
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#4 (permalink)
| BattleForums Junior Member
Join Date: Dec 2004 Location: your shower Age: 24 Posts: 89
| high people will...
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:rainfro :doped PLURR!!! :doped :rainfro |
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05-08-2006, 12:02 PM
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#5 (permalink)
| Grumpy Old Grandpa
Join Date: Dec 2002 Location: Portugal Age: 23 Posts: 9,990
| It would depend on the signal of the last element of the sum.
But we'd have to have (how do you write polynomion, or whatever  , btw?) a pair of +1 with -1 for that to equal zero.
That is, we'd need 0=1-1+1-1+1-1+...1-1+1-1+1-1
RHS=1-(1-1)-(1-1)-(1-...1)-(1-1)-(1-1)-1 |
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05-08-2006, 12:57 PM
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#6 (permalink)
| BattleForums Newbie
Join Date: May 2006 Posts: 9
| 0=1-1+1-1+1-1+1-1+1-1+1-1+1-1+...
RHS=(1-1)+(1-1)+(1-1)+(1-1)+(1-1)+(1-1)+(1-1)+...
RHS=0+0+0+0+0+0+0+...
RHS=0
LHS=0
Therefore LHS=RHS which is bullshit somehow >< |
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05-08-2006, 11:35 PM
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#7 (permalink)
| Praetoris Maximus
Join Date: Jun 2003 Location: London, Ontario Age: 19 Posts: 2,507
| Besides, you cannot assume LHS=RHS beforehand, that's flawed math.
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05-08-2006, 11:57 PM
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#8 (permalink)
| Respected Member
Join Date: Dec 2002 Location: San Jose Age: 21 Posts: 4,204
| You can assume LHS=RHS in the first step... there's just the matter of proving it, which is why he uses this proof. However, the prove does make assumptions, making it untrue.
Because LHS=0, the last number in series RHS must be -1. The second step assumes that the last number in series RHS is 1, but it isn't.
0=1-1+1-1+1-1+1-1+1-1+1-1+1-1+...-1
RHS=1-(1-1)-(1-1)-(1-1)-(1-1)-(1-1)-(1-1)-...1
RHS=1-0-0-0-0-0-0-...1
RHS=0
But we started with LHS=RHS.
Therefore LHS=0.
Therefore 0=0. Who knew? I really thought 0=42.
What's the point of this? Are you trying to trick us?
What's the square root of 1000? |
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05-09-2006, 12:21 AM
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#9 (permalink)
| Praetoris Maximus
Join Date: Jun 2003 Location: London, Ontario Age: 19 Posts: 2,507
| What I'm saying is you can "assume" LHS=RHS, but you cannot use that as a form of proof because it's an assumption, not a fact. It's a circular argument if you prove LHS=RHS by assuming LHS=RHS. That's like I could say I can prove George Bush is the anti-christ by assuming that as true.
Oh, and the square root of 1000 is 10√10, or roughly 31.6.
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Last edited by EEX_ca_aok; 05-09-2006 at 12:24 AM.
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05-09-2006, 12:28 AM
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#10 (permalink)
| BANNED
Join Date: Oct 2004 Location: Auburn Posts: 2,014
| The answer is obviously 3. |
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05-09-2006, 12:30 AM
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#11 (permalink)
| Respected Member
Join Date: Dec 2002 Location: San Jose Age: 21 Posts: 4,204
| Quote: |
Originally Posted by EEX_ca_aok What I'm saying is you can "assume" LHS=RHS, but you cannot use that as a form of proof because it's an assumption, not a fact. It's a circular argument if you prove LHS=RHS by assuming LHS=RHS. That's like I could say I can prove George Bush is the anti-christ by assuming that as true.
Oh, and the square root of 1000 is 10√10, or roughly 31.6. | Yeah, I know that. But it's not what you said. Sorry, I just felt like being annoying.
It's funny how many people think it's 100. Funny, yet sad. |
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05-09-2006, 08:05 AM
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#12 (permalink)
| BattleForums Senior Member
Join Date: Aug 2003 Location: Iraq Age: 22 Posts: 4,529
| Sq. Root of 1000 = 31.6227766016837933199889935444327.....
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05-09-2006, 08:32 AM
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#13 (permalink)
| Aya Matsuura is awesome
Join Date: Nov 2002 Location: Trieste, Friuli-Venezia Giulia Age: 20 Posts: 15,282
| Quote: |
Originally Posted by TrongaMonga It would depend on the signal of the last element of the sum.
But we'd have to have (how do you write polynomion, or whatever  , btw?) a pair of +1 with -1 for that to equal zero.
That is, we'd need 0=1-1+1-1+1-1+...1-1+1-1+1-1
RHS=1-(1-1)-(1-1)-(1-...1)-(1-1)-(1-1)-1 | There is no end of the sequence - it is infinite.*
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05-09-2006, 10:25 AM
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#14 (permalink)
| BattleForums Junior Member
Join Date: Apr 2006 Posts: 105
| Whats the point of this? |
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05-09-2006, 12:04 PM
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#15 (permalink)
| BattleForums Member
Join Date: Nov 2005 Age: 64 Posts: 326
| he moved the bracket,
0 = (1-1) + (1-1) + (1-1) ... FIRST LINE yeah this is true
0 = 1 - (1 - 1) - (1 - 1) - (1 - 1) ... SECOND if the amount of numbers in this series hasn't changed (and it can't) it should end with -1, not -(1-1) which is -1 + 1.
You can't really say LS = RS if RS =/= RS 
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05-09-2006, 04:33 PM
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#16 (permalink)
| Respected Member
Join Date: Dec 2002 Location: San Jose Age: 21 Posts: 4,204
| Quote: |
Originally Posted by x42bn6 There is no end of the sequence - it is infinite.* | Then isn't the answer undefined? |
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05-10-2006, 09:41 AM
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#17 (permalink)
| Aya Matsuura is awesome
Join Date: Nov 2002 Location: Trieste, Friuli-Venezia Giulia Age: 20 Posts: 15,282
| I don't think undefined is the answer, but I think you hit the nail on the head but it slipped.
And the brackets moving is mathematically correct - a+b+c=a+(b+c)=(a+b)+c and so on.*
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05-10-2006, 05:13 PM
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#18 (permalink)
| Respected Member
Join Date: Dec 2002 Location: San Jose Age: 21 Posts: 4,204
| So you are trying to trick us? |
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05-11-2006, 02:25 AM
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#19 (permalink)
| Aya Matsuura is awesome
Join Date: Nov 2002 Location: Trieste, Friuli-Venezia Giulia Age: 20 Posts: 15,282
| Of course - how can zero equal one?*
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