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

You are not logged in.

- Topics: Active | Unanswered

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,883

Hi Agnishom;

**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

What led you to the conjecture?

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,883

Hi;

Experimental math will produce the correct answer or one that is very close nearly all the time. Not quite rigorous enough for mathematicians but in the real world computation is king.

In addition it suggests a useful property of the possible triangle. I will work on a proof for you but for now I have chores to do.

**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

So, you used Geogebra?

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,883

Yes and a few simple rules.

**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

Hi;

Would you send me the file?

'And fun? If maths is fun, then getting a tooth extraction is fun. A viral infection is fun. Rabies shots are fun.'

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,883

Yes, if you want it. Or, I could post how I did it in Computer math...

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

Offline

Please do whichever you feel is better

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,883

Hi Agnishom;

Scientia has just supplied me with this link. Much thanks.

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

Offline

Yes!

Thank you so much, Scientia!

How do I put this as a proof? Would it be rigorous enough? I think the man is also doing experimental geometry

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,883

Hi Agnishom;

Did you understand that the first part shows that there can only be 3 possible answers?

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

Offline

I saw it. But still I have doubts

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,883

Hi;

How about the part that says two of the sides must be equal to what is given?

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

Offline

I accept it for myself.

But, how do I put it into a written proof?

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,883

Hi Agnishom;

So you would like to have a way to express the fact that you must use 2 of the 3 sides given?

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

Offline

Hmm...

That is what I am trying to tell

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,883

Hi;

It looks intuitively obvious but those are always the hardest to prove. I do not have anything firm either.

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

Offline

You are correct!

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,883

Maybe someone else will show the right way to go from that video. If I get something I will post it for you.

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

Offline

So, did anyone get anything yet?

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

Question 10: ** A computer program chooses 175 numbers at random, all of which are composed of prime divisors less than 10. Prove that there exists atleast three numbers such that their product is the cube of an integer**

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

Any ideas?

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,883

Hi Agnishom;

Not yet. I do not even have it in my literature.

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

Offline

What does your literature constitute of?

'God exists because Mathematics is consistent, and the devil exists because we cannot prove it'

'You have made another human being happy. There is no greater accomplishment.' -bobbym

Offline

**bobbym****Administrator**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 92,883

Hi;

A pretty good math library, about as good or better than a university library. Could not find it yet on the web either.

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

Offline