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The equation A/(x-a1)+A2/(x-a2)+A3/(x-a3...

The equation `A/(x-a_1)+A_2/(x-a_2)+A_3/(x-a_3)=0 where A_1,A_2,A_3gt0 and a_1lta_2lta_3` has two real roots lying in the invervals. (A) `(a_1,a_2) and (a_2,a_3)` (B) `(-oo,a_1) and (a_3,oo)` (C) `(A_1,A_3) and (A_2,A_3)` (D) none of these

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