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Petenerd
05-17-2009, 07:30 PM
I am a little bit confused on square roots of negative numbers. For example sqrt -48. Would it be a negative number or a postitive number?

Subhotosh Khan
05-17-2009, 07:46 PM
I am a little bit confused on square roots of negative numbers. For example sqrt -48. Would it be a negative number or a postitive number?

Neither - square root of negative numbers are called imaginary numbers. Your text-book should have extensive discussion around this. You could also use google to find relevant articles to help you.

stapel
05-18-2009, 08:43 AM
I am a little bit confused on square roots of negative numbers.
To supplement what you read in your book and heard in class, try some online articles on square roots of negative numbers (http://www.google.com/search?hl=en&q=square+root+negative+number). :wink:

Aladdin
05-18-2009, 01:06 PM
When I was in grade 7,8 and 9. Our teacher used to tell us that it is impossible to have a negative sign under the radical, but today :) after taking the complex numbers lessons it changed a lot,
And I think that what will happen to you also. :wink:

Aladdin