1.

If alpha, beta and gamma are the roots of the equation x^(3)+px^(2)+qx+r=0 , then the coefficient of x in the cubic equation whose roots are alpha(beta+gamma), beta(gamma+alpha) and gamma(alpha+beta) is

Answer»

2q
`Q^(2)+PR`
`p^(2)-qr`
`r(pq-r)`

ANSWER :B


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