यदि $\omega$ इकाई का एक सम्मिश्र घनमूल है,तो $\left(1+\frac{1}{\omega}\right)\left(1+\frac{1}{\omega^2}\right)+\left(2+\frac{1}{\omega}\right)\left(2+\frac{1}{\omega^2}\right)+\ldots+\left(n+\frac{1}{\omega}\right)\left(n+\frac{1}{\omega^2}\right)=$

  • A
    $\frac{n(n^2+1)}{3}$
  • B
    $\frac{n(n^2+2)}{3}$
  • C
    $\frac{n(n^2-2)}{3}$
  • D
    $\frac{n^2(n-1)}{6}$

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