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anthony rebello Grade: 12
        

solve for x :


x7 = 1


 


{ the answer is not only = 1, it probably has 6 other values }

8 years ago

Answers : (2)

Askiitian.Expert Rajat
24 Points
										

Hi Anthony


1 = cos2pi + isin2pi


11/7 = cos(2rpi/7) + isin(2rpi/7)


where


r = 1,2,3,4,5,6,7


This was derived using Euler's Formula


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Regards,


Rajat


Askiitians.com

8 years ago
anthony rebello
8 Points
										

thnx for the reply, but i hav a doubt :


 


why cant    1=cos (0) + i sin (0)

8 years ago
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