If α, β, γ are the zeros of the polynomial f(x) = x3 – px2 + qx – r, then 
=
Given,
f(x) = x3 – px2 + qx – r
α, β and y are the Zeros,
α + β + y = – p
αβ + βy + yα = – q
αβy = – r
1/αβ + 1/βy + 1/yα = p/r
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If α, β, γ are the zeros of the polynomial f(x) = x3 – px2 + qx – r, then =
Given,
f(x) = x3 – px2 + qx – r
α, β and y are the Zeros,
α + β + y = – p
αβ + βy + yα = – q
αβy = – r
1/αβ + 1/βy + 1/yα = p/r