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[" If "p(q-r)x^(2)+q(r-p)x+r(p-q)=0quad ...

[" If "p(q-r)x^(2)+q(r-p)x+r(p-q)=0quad " has equal roots then "],[(A)p^(2)+q^(2)+r^(2)=0],[" (B) "p^(2)+q^(2)+r^(2)=pq+qr+rp],[" (C) "2pr=q(p+r)],[" (D) "p,q," rare in "AP]

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