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Am I dumb                   I don't know what the square root of x when x is -1

 Sep 15, 2014

Best Answer 

 #1
avatar+118654 
+8

It is an imaginary number called i

 Sep 15, 2014
 #1
avatar+118654 
+8
Best Answer

It is an imaginary number called i

Melody Sep 15, 2014

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