1.

.Let p & q be the position vectors of P & Qrespectively with respect to O and points 'RS' divide PQ internally & externallyrespectively in ratio 2 3. If OR & OS areperpendicular then equation whose all rootsrepresents all possible values ofis9(1)9x2 = 4(2) 9x2-24x + 16 = 0(3) 9x -12x +40(4) 9x2 + 12x + 4 = 0

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