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#101 2013-11-15 14:34:56

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 81,414

Re: Change your subject.

I repeated it because of this:

But when 9 is in a square root sign it gives two answers i.e -3 and 3.

I wanted him to be sure that the answer is only 3. 1 answer not 2.


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.

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#102 2013-11-17 20:26:59

EbenezerSon
Member
Registered: 2013-07-04
Posts: 230

Re: Change your subject.

Hi, bobym.

Look the link you provided at page 4 concerning the square roots signs.
It says so:

When two numbers are multiplied within a square root, you can split it into a multiplication of two square roots.
But only when X and Y are both greater than or equal to 0.
My question is:

Which figure is equal to zero before  the splitting will be possible?



wave

Last edited by EbenezerSon (2013-11-17 20:35:26)

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#103 2013-11-17 21:41:26

bobbym
Administrator
From: Bumpkinland
Registered: 2009-04-12
Posts: 81,414

Re: Change your subject.

Hi;

I do not see the figure.


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.

Offline

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