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can you get a square root out of a negative nubmer

 Feb 5, 2020
 #1
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can you get a square root out of a negative nubmer

 

The answer is NO!              sqrt ( - 25 ) = error   

              

                       Because:      ( - 5 )*( + 5 ) = - 25  wink

 Feb 5, 2020
edited by Guest  Feb 5, 2020
edited by Guest  Feb 5, 2020
 #2
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+1

Hello Dragan,

You are correct! 

But, maybe the Guest is referring to imaginary units (I.e. complex numbers)

Where \(\sqrt{-25}=5i\)

Where \(i=\sqrt{-1}\)

Guest Feb 5, 2020
 #3
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Hello guest! Agreed.  I should've added a word  reality  smiley

 

What about this:       sqrt( |-25| ) = sqrt ( 25 )  wink

Dragan  Feb 5, 2020

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