यदि $1, \omega, \omega^{2}$ इकाई के तीन घनमूल हैं,तो $(1-\omega+\omega^{2})(1+\omega-\omega^{2})$ का मान क्या है?

  • A
    $1$
  • B
    $2$
  • C
    $3$
  • D
    $4$

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