29 Jul 2021

if a+b+c =0 and 1,w,w^2 are three cube roots of unity , then (a+bw+cw^2)^3+( a+bw^2+c^2)^3 is equal to 27abc

 

if a+b+c =0 and 1,w,w^2 are three cube roots of unity , then (a+bw+cw^2)^3+( a+bw^2+c^2)^3 is equal to 27abc UPDATEANS



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