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If alpha, beta, gamma are roots of the ...

If `alpha, beta, gamma ` are roots of the equation `x^3+qx+r=0` then find the value of (i) `(beta-gamma)^2+(gamma-alpha)^2+(alpha-beta)^2` (ii) `(beta+gamma)^(-1) +(gamma+alpha)^(-1)+(alpha+beta)^(-1)`

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