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![[Post New]](/templates/default/images/icon_minipost_new.gif) 16 Jul 2008 22:09:39 IST
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yaar that page is not available.....shall i call sherlock holmes???hehehe lol...
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i am well....and hope u r in the same well.... |
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16 Jul 2008 22:10:06 IST
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yaar even i have doubt........how come the answer comes out to b negative
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SAHIL MADAAN
MECHANICAL ENGINEERING (B.Tech. 4 Yr)
IIT PATNA |
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16 Jul 2008 22:10:17 IST
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LOL.
@krish,
the formula for infinite GP is valid ONLY when r<1.
@gonik,
If the series go till infinity, there cannot be any answer to its sum.
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16 Jul 2008 22:10:25 IST
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yeh common difference kahaan se aaya ??@sahilmadaan12
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i am well....and hope u r in the same well.... |
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16 Jul 2008 22:12:05 IST
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@tarinbansal.....even i know that....but yaar dekh na....saare steps logical hai na??...no division prob of zero here as well...wich is anoher common mistake....but here no such thing...
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i am well....and hope u r in the same well.... |
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16 Jul 2008 22:12:56 IST
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@krish
Please note that the formula  is valid only when the infinite series is converging, that is, the common ratio  . This formula is actually derived from the formula for finite series which is  When  , we can apply the limit that  so that we get  . So in this case, the formula is not applicable. As for the original question, I think the reason given by rudra.panda is correct. You cannot assign a real value to an infinite diverging series
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16 Jul 2008 22:14:08 IST
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See 1+2+4+8..................... cannot be assigned any number as it is a divergent series.
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16 Jul 2008 22:15:36 IST
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brilliant rudra
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16 Jul 2008 22:15:50 IST
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what gonik u r doing,u r playing with infinity,and all algebric operations are not valid for infinity.here 2s also tends to infinity and s also tends to infinity how can you subtract infinity-infinity and make it some else
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16 Jul 2008 22:16:27 IST
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@ sahil,Thanks for pointing out the mistake.It is valid for |r| < 1
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16 Jul 2008 22:18:06 IST
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yeah thats right....sachinguptaiit is right...rated u....but this is wat i found in wikipedia..
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i am well....and hope u r in the same well.... |
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16 Jul 2008 22:18:49 IST
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ok so over!
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16 Jul 2008 22:22:38 IST
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yup thats right....over!!!
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i am well....and hope u r in the same well.... |
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16 Jul 2008 22:22:55 IST
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@ every one.I think all can check out the link which had a similar problem
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16 Jul 2008 22:23:35 IST
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