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in Mathematics by (75.4k points)

If α  β are the roots of x2 + x + 1 = 0 then |(y + 1, β, α), (β, y + α, 1), (α, 1, y + β)| =

(1) y2 - 1

(2) y(y2 - 1)

(3) y2 - y

(4) y3   

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