If \( \alpha \) and \( \beta \) are imaginary cube roots of unity, then the value of \( \alpha^{...

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If \( \alpha \) and \( \beta \) are imaginary cube roots of unity, then the value of \( \alpha^{4}+\beta^{28}+\frac{1}{\alpha \beta} \) is
(A) 1
(B) \( -1 \)
(C) None of these
(D) undefined
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