Solution:
Given and are roots of px2 + qx + r =0,
…………………….(i)
Since, p, q and r are in AP
……………………………………….(ii)
On putting the value of qin Eq. (ii), we get
Let and be the roots of equation px2+ qx+ r = 0 If p ,q and r, n AP and then the value of is
Given and are roots of px2 + qx + r =0,
…………………….(i)
Since, p, q and r are in AP
……………………………………….(ii)
On putting the value of qin Eq. (ii), we get