if w= -1+√3i/2 ,find (1-w+w^2)^3
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sorry I can't understand
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w=-1+√3i/2
(1-w+w^2) ^3=(1+1-√3i/2+1-√3i/2-3/4) ^3
=(3-3/4) ^3
=[(12-3)/4] ^3
=9/4^3
=729/64
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