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What is the square of 4i

 Jun 13, 2014

Best Answer 

 #1
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(4i)^2 =  16i^2   and i^2 = -1 .... so we have .....  16(-1) = -16

 

 Jun 13, 2014
 #1
avatar+130477 
+5
Best Answer

(4i)^2 =  16i^2   and i^2 = -1 .... so we have .....  16(-1) = -16

 

CPhill Jun 13, 2014

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