If every pair from among the equations` x^2+px +qr =0`, `x^2 +qx +rp =0` and `x^2 + rx +pq = 0` has a common root then the product of three common root is (A) pqr (B) 2pqr (C) (`p^2 q^2r^2`) (D)none of these

IF every pair from the equation x^2 +px +qr =0 , x^2 +qx + rp =0 and x^2 + rx +pq =0 has a common root , them the product of three common roots is

If every pair from among the equations x^(2)+px+qr=0,x^(2)+qx+rp=0 and x^(2)+rx+pq=0 has a common root then the product of three common root is (A) pqr (B) 2 pqr (C) p^(2)q^(2)r^(2)(D) none of these

If every pair from among the equations x^(2)+px+qr=0,x^(2)+qx+rp=0 and x^(2)+rx+pq has a common root then the product of three common root is (A) pqr (B) 2 pqr (C) p^(2)q^(2)r^(2)(D) none of these

If each pair of the following equations x^2+px+qr=0, x^2+qx+pr=0 and x^2+rx+pq=0 has common root, then the product of the three common roots is (A) 2pqr (B) pqr (C) -pqr (D) none of these

If each pair of the following equations x^2+px+qr=0, x^2+qx+pr=0 and x^2+rx+pq=0 has common root, then the product of the three common roots is (A) 2pqr (B) pqr (C) -pqr (D) none of these

If every pair from among the equations x^ 2 + p x + q r = 0, x^2+px+qr=0, x^2 + q x + r p = 0, x^2+qx+rp=0 and x^2 + r x + p q = 0, x^2+rx+pq=0 has a common root then the product of three common root is (A) pqr (B) 2pqr (C) (p^2q^2r^2) (D)none of these

If every pair from among the equations x^2+px+qr=0,x^2+qx+rp=0 and x^2+rx+pq=0 has a common root, then the sum of the three common roots is

If every pair from among the equations x^(2)+px+qr=0,x^(2)+qx+rp=0 and x^(2)+rx+pq=0 has a common root,then the sum of the three common roots is