Prove Leading to -1

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David Cohen Textbook Questions.
Enjoy.


IMG_20220204_134625.jpg
 
((-1+i*sqrt(3))/2)+((-1-i*sqrt(3))/2)=-1

-1/2+(i*sqrt(3))/2+-1/2-(i*sqrt(3))/2=-1

-1/2-1/2+(i*sqrt(3))/2-(i*sqrt(3))/2=-1
-1+0=-1
-1=-1
 
((-1+i*sqrt(3))/2)+((-1-i*sqrt(3))/2)=-1

-1/2+(i*sqrt(3))/2+-1/2-(i*sqrt(3))/2=-1

-1/2-1/2+(i*sqrt(3))/2-(i*sqrt(3))/2=-1
-1+0=-1
-1=-1

Marvelous work! I will not post anything new today. There are many questions that remain unanswered. I will wait for those to be checked out.
 

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