Question

Select the exclusion that fits best with this problem.

Answer 1

`(1)/(2y-2y^2), y\\eq 1`

Explanation:

observe by factorization and cancelation

`(y^2+y+1)/(-2y(y^3-1))=(y^2+y+1)/(-2y(y-1)(y^2+y+1))</p><p>\\=(1)/(-2y(y-1))</p><p>\\=(1)/(2y-y^2)`