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

ganesh
Moderator
Registered: 2005-06-28
Posts: 14,776

Square Roots

I. Find the square roots of

(1)

(2)

(3)

(4)

II. Show that

.


Character is who you are when no one is looking.

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

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 88,521

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.

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

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 88,521

Re: Square Roots

Hi ganesh

for (2)


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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#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: 88,521

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.

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

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