1.

If zeros of the polynomial f(x) = x3 − 3px2 + qx − r are in A.P., then(a) 2p3 = pq − r(b) 2p3 = pq + r(c) p3 = pq − r(d) None of these

Answer» If zeros of the polynomial f(x) = x3 − 3px2 + qx − r are in A.P., then



(a) 2p3 = pq − r

(b) 2p3 = pq + r

(c) p3 = pq − r

(d) None of these


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