Let pa n dq be the roots of the equation...

Let `pa n dq` be the roots of the equation `x^2-2x+A=0` and let `ra n ds` be the roots of the equation `x^2-18 x+B=0.` If `p< q< r< s` are in arithmetic progression, then `A=` and `B=...` (1997, 2M)

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