If \( \omega(\neq 1) \) is a cube root of unit, and \( (1+\omega)^{...

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If \( \omega(\neq 1) \) is a cube root of unit, and \( (1+\omega)^{7}=\mathrm{A}+\mathrm{B} \omega \). Then \( (\mathrm{A}, \mathrm{B}) \) equals
(1) \( (0,1) \)
(2) \( (1,1) \)
(3) \( (2,0) \)
(4) \( (-1,1) \)
\( \mathrm{P} \)
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