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#1 2009-03-01 04:06:22

ganesh
Moderator
Registered: 2005-06-28
Posts: 21,293

Square Roots

I. Find the square roots of

(1)

(2)

(3)

(4)

II. Show that

.


It is no good to try to stop knowledge from going forward. Ignorance is never better than knowledge - Enrico Fermi. 

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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#2 2009-04-20 19:17:39

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 105,243

Re: Square Roots

Hi ganesh;

Answer for (1)

Last edited by bobbym (2009-04-20 22:32:41)


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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#3 2009-04-21 17:49:09

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 105,243

Re: Square Roots

Hi ganesh

for (2)


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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#4 2009-04-21 18:55:20

smiyc86
Member
Registered: 2009-03-19
Posts: 78

Re: Square Roots

hi ganesh,


I love Maths and Music ... dunno which more wink

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#5 2009-04-25 15:44:51

nurshodiq
Member
Registered: 2009-03-29
Posts: 12

Re: Square Roots






Last edited by nurshodiq (2009-04-25 15:57:19)

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#6 2009-04-25 16:03:18

nurshodiq
Member
Registered: 2009-03-29
Posts: 12

Re: Square Roots

How many pairs of natural number (x,y) with

prime

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#7 2009-04-27 00:16:34

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 105,243

Re: Square Roots

Hi nurshodiq;

I think that


is the only solution.

Since it factors into:


and both of those terms are greater than 1 for all


must consist of 2 or more primes or two or more composites so

cannot be prime


In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
No great discovery was ever made without a bold guess.

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