fandsln; \(\frac{1}{2}\) $\dfrac{1}{2}$ $\alpha$ $10~\text{m/s}$ \(\omega \Omega\) \(\sin \) Eyepiece
If 1,ω,ω2 are the three cube roots of unity, then for α,β,γ,δϵR, the expression (α+βω+γω2+δω2β+αω2+γω+δω) is