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Is it possible to find the square root a negative number?

 Apr 7, 2015

Best Answer 

 #1
avatar+129852 
+10

Yes....but it's not a "real" number

The square root of  -1 is defined as " i "......where i  is an "imaginary" number

So, for example

√(-4) =

√(-1 * 4)  =

√(-1) *  √4  =

i * 2     which is usually written as 

2i

 

  

 Apr 7, 2015
 #1
avatar+129852 
+10
Best Answer

Yes....but it's not a "real" number

The square root of  -1 is defined as " i "......where i  is an "imaginary" number

So, for example

√(-4) =

√(-1 * 4)  =

√(-1) *  √4  =

i * 2     which is usually written as 

2i

 

  

CPhill Apr 7, 2015
 #2
avatar+223 
+5

thanks CPhill.

 Apr 8, 2015

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