Let alpha and beta be roots of the equat...

Let `alpha` and `beta` be roots of the equation `X^(2)-2x+A=0` and let `gamma` and `delta` be the roots of the equation `X^(2)-18x+B=0`. If `alpha lt beta lt gamma lt delta` are in arithmetic progression then find the valus of A and B.

(-3,77)

(77,-3)

(-3,-77)

none of these

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