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If Q = 11 - 5i, E = 11i, and D = 2i, find Q*E*D.

 May 16, 2022
 #1
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Written as a complex number, the answer is -242+110i

 

(11-5i)(11i)(2i)=

(11*11i-5*11i2)*2i=

(55+121i)(2i)=

(55)(2i)+(121i)(2i)=

110i-242=

-242+110i

 May 17, 2022

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