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## #1 2009-11-02 12:24:24

MathsIsFun
Registered: 2005-01-21
Posts: 7,651

### Squares and Square Roots

I decided to go from one to two pages on Squares and Square Roots:

The Original (simple): Squares and Square Roots

The New One (more advanced): Squares and Square Roots in Algebra

Does it cover it well?

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

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## #2 2009-11-03 01:53:29

bobbym
bumpkin
From: Bumpkinland
Registered: 2009-04-12
Posts: 109,606

### Re: Squares and Square Roots

MathsisFun;

MathsisFun wrote:

Does it cover it well?

Yes.

In mathematics, you don't understand things. You just get used to them.
If it ain't broke, fix it until it is.
Always satisfy the Prime Directive of getting the right answer above all else.

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## #3 2009-11-03 02:37:32

mathsyperson
Moderator
Registered: 2005-06-22
Posts: 4,900

### Re: Squares and Square Roots

Good pages!
The one change I'd make is to add a bit more explanation to when you say √2 * √2 = 2.

Why did the vector cross the road?
It wanted to be normal.

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## #4 2009-11-03 08:16:00

MathsIsFun
Registered: 2005-01-21
Posts: 7,651

### Re: Squares and Square Roots

Thanks, will do

"The physicists defer only to mathematicians, and the mathematicians defer only to God ..."  - Leon M. Lederman

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## #5 2009-11-06 19:22:15

Anakin
Member
Registered: 2009-10-04
Posts: 145

### Re: Squares and Square Roots

mathsyperson wrote:

Good pages!
The one change I'd make is to add a bit more explanation to when you say √2 * √2 = 2.

√2 * √2 = √(2*2) = √4 = 2

About that.. ^, if you really want to, you can also state that the √a * √b = √ab is not always true.

For instance, - 1 = i^2 = i * i = √-1 * √-1 = √(-1*-1) = √1 = 1

That is untrue, so if you are really bored enough, you can add that and explain why.'

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