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

You are not logged in.

- Topics: Active | Unanswered

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,184

not sure if i know how to do this one.

i just noticed when you posted these several problems that i don't know limits as much as i thought.

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

Offline

**gAr****Member**- Registered: 2011-01-09
- Posts: 3,478

Not a problem.

You should be happy that there's more to learn, wihch's great fun!

"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense" - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,184

thanx gAr

you're right about learning.just hope i can learn it.

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

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,184

could you find a slightly easier problem?

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

Offline

**gAr****Member**- Registered: 2011-01-09
- Posts: 3,478

Do you know L'Hospital's rule?

"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense" - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,184

I do.

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

Offline

**gAr****Member**- Registered: 2011-01-09
- Posts: 3,478

Okay.

4)

"Believe nothing, no matter where you read it, or who said it, no matter if I have said it, unless it agrees with your own reason and your own common sense" - Buddha?

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,184

hi gAr just one question.

Using the l'Hopital's rule i got:

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

Offline

**gAr****Member**- Registered: 2011-01-09
- Posts: 3,478

You left out 1 from the numerator:

and use the rule again.

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,184

hi gAr

*Last edited by anonimnystefy (2011-06-28 03:08:14)*

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

Offline

**gAr****Member**- Registered: 2011-01-09
- Posts: 3,478

Yes!

5)

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,184

hi gAr

*Last edited by anonimnystefy (2011-06-28 04:10:39)*

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

Offline

**bob bundy****Moderator**- Registered: 2010-06-20
- Posts: 6,294

hi gAr

I'm getting

Bob

You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,195

Hi all;

**In mathematics, you don't understand things. You just get used to them.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

**Online**

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,184

hi bob bundy and bobbym

you're right guys. i started the wrong way.

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

Offline

**gAr****Member**- Registered: 2011-01-09
- Posts: 3,478

Hi all,

-2 is correct.

Hi anonimnystefy,

If you show your steps, it would be easier to know whether you are approaching it in a good way, or you have come up with a better way!

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

**gAr****Member**- Registered: 2011-01-09
- Posts: 3,478

**6)**

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,184

hi gAr

here's how i did it:

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

Offline

**gAr****Member**- Registered: 2011-01-09
- Posts: 3,478

Hi anonimnystefy,

You may avoid L'Hospital's rule here!

Now, try the next one!

*Last edited by gAr (2011-06-28 04:37:38)*

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,184

could you give me a hint?

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

Offline

**gAr****Member**- Registered: 2011-01-09
- Posts: 3,478

Hi,

"Data! Data! Data!" he cried impatiently. "I can't make bricks without clay."

Offline

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,184

hi gAr

can't seem to get it

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,195

Hi gAr;

**In mathematics, you don't understand things. You just get used to them.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

**Online**

**anonimnystefy****Real Member**- From: The Foundation
- Registered: 2011-05-23
- Posts: 15,184

what from here?

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

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 84,195

Hi anonimnystefy;

Sorry, that is the best I could do. I am drawing a blank.

**In mathematics, you don't understand things. You just get used to them.I have the result, but I do not yet know how to get it.All physicists, and a good many quite respectable mathematicians are contemptuous about proof.**

**Online**