If ∆_{1}=|\table 1 , p , q ; 1 , q , r ; 1 , r , p| and ∆_{2}=|\table 1 , 1 , 1 ; q , r , p ; r , p , q| where p \neq q \neq r, then ∆_{1}+∆_{2} is [NDA-I 2022]

Correct Answer is : always negative

positive if p, q, r are positive else negative .