If $\alpha$ is a non-real root of the equation $x^6-1=0$ then…

If $\alpha$ is a non-real root of the equation $x^6-1=0$ then $\frac{\alpha^2+\alpha^3+\alpha^4+\alpha^5}{\alpha+1}=$
  1. $\alpha$
  2. 1
  3. 0
  4. $-1$

Solution

No solution. Refer to answer key.

Asked in: AP EAMCET 2017 (25 Apr Shift 1)

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