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#26 2012-07-22 05:45:44

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,682

Re: a challenging problem for all

If you meant an expression for the closed form then it is obviously not possible. The sum will either equal a constant or infinity.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#27 2012-07-22 05:47:03

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,658

Re: a challenging problem for all

It is possible.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#28 2012-07-22 05:49:48

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,682

Re: a challenging problem for all

With a variable as the upper index yes. But with an infinity up there the sum is either a constant like 1 / 2 ( just picked as an example ) or ∞.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#29 2012-07-22 05:52:02

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,658

Re: a challenging problem for all

It can be an expression in terms of x.


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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#30 2012-07-22 09:01:52

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,682

Re: a challenging problem for all

Yes, it could.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

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#31 2012-08-15 01:05:45

rajinikanth0602
Member
Registered: 2012-06-30
Posts: 16

Re: a challenging problem for all

hi bobbym any information about my question

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#32 2012-08-15 01:35:48

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,682

Re: a challenging problem for all

Hi rajinikanth0602;

By the ratio test:

By the ratio test the series diverges for all values of x.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Offline

#33 2012-09-01 21:17:30

rajinikanth0602
Member
Registered: 2012-06-30
Posts: 16

Re: a challenging problem for all

i think post reply ''19'' is not correct

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#34 2012-09-01 21:18:23

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 90,682

Re: a challenging problem for all

Hi;

Did you see post #32?

i will challenge that i will give 7000 rupees for solving dis problem or any important information about that sequence or range of that sequence

In exchange for the rupees I would like your acknowledgement that the problem has been solved with the proof that is in post#32, or do you require more?

As for post #19. It may be correct, I do not know. Still it is a very nice piece of work by a good man.


In mathematics, you don't understand things. You just get used to them.

I agree with you regarding the satisfaction and importance of actually computing some numbers. I can't tell you how often I see time and money wasted because someone didn't bother to run the numbers.

Offline

#35 2012-09-01 23:05:52

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,658

Re: a challenging problem for all

Hi rajinikanth0602

What problems do you see in post #19?

Last edited by anonimnystefy (2012-09-01 23:06:11)


“Here lies the reader who will never open this book. He is forever dead.

“Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment

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