Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#351 2012-04-13 00:09:37

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,674

Re: Series

Me too!


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#352 2012-04-13 00:10:32

anonimnystefy
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From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

Haha...Could it be done by differentiation?


“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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#353 2012-04-13 00:43:52

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,674

Re: Series

I do not think so. At least I do not know how.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#354 2012-04-13 00:45:55

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

I know how to do the Integral of arcsin(x)/x dx !!! Let me write it up.

Btw,the Sulfur forum theme is so awesome.The buttons look much better than in SleekBlue.


“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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#355 2012-04-13 00:52:14

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,674

Re: Series

I use oxygen but hope to use greenpun in the future.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#356 2012-04-13 02:10:32

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

anonimnystefy wrote:
gAr wrote:

16)


hi gAr


“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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#357 2012-04-13 03:21:27

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,674

Re: Series

Okay, I am over here as you requested. What now?


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#358 2012-04-13 03:22:39

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

Can you check my answer in #357?


“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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#359 2012-04-13 03:26:32

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,674

Re: Series

Of what value is that to you? Are you not sure of your answer? These exercises are for each person to do by themselves.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#360 2012-04-13 03:30:23

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

Yes,the exercises are for individuals,but they must be checked for errors,otherwise,what's the point?


“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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#361 2012-04-13 03:31:09

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,674

Re: Series

True and you are the person who must check them.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#362 2012-04-13 03:32:18

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

But if I miss a mistake? They must be checked by an objective by-stander,which I am not,and which you are!


“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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#363 2012-04-13 03:33:47

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,674

Re: Series

Ehhhhhhh! I am not objective! I am doing these too.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#364 2012-04-13 03:36:02

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

So what.You can be objective to my solutions!


“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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#365 2012-04-13 03:39:15

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,674

Re: Series

I think I must tell you that I received a secret communication from gAr. He said I was to mind my own business and stop giving away the answers.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#366 2012-04-13 03:40:50

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

You are lying!!!


“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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#367 2012-04-13 03:41:43

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,674

Re: Series

True but that is going to happen if I continue to interfere.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#368 2012-04-13 03:42:56

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

No,it's not!


“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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#369 2012-04-13 03:54:10

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,674

Re: Series

I have helped past the point of fair play. You will have to check that one for yourself. Please try to understand.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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#370 2012-04-13 03:54:47

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

Ok.I understand.


“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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#371 2012-04-14 15:59:40

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

I have done #13 with a suggestion on the method. I will post my work and solution tomorrow.


“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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#372 2012-04-16 10:51:59

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

gAr wrote:

4)

This appeared in AMM

Find

Hi gAr


“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

Online

#373 2012-04-18 10:03:05

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

15 is an easy one. I will try to write it up tomorrow.


“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

Online

#374 2012-04-18 22:45:06

anonimnystefy
Real Member
From: The Foundation
Registered: 2011-05-23
Posts: 15,525

Re: Series

gAr wrote:

15)


hi gAr


“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

Online

#375 2012-04-19 03:29:29

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 86,674

Re: Series

Hold on for a second for a check.


In mathematics, you don't understand things. You just get used to them.
Of course that result can be rigorously obtained, but who cares?
Combinatorics is Algebra and Algebra is Combinatorics.

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