If every pair from among the equations x ^ 2 +p x +q r=0 , x ^ 2 + x + p q =0 , x^ 2 +q…
Mathematics · JEE Main · NTA Exams — Complex Numbers and Quadratic Equations
If every pair from among the equations \(\mathbf{x}^{2}+p \mathbf{x}+q r=0\), \(\mathbf{x}^{2}+\mathbf{x}+\mathbf{p q}=0\), \(x^{2}+q x+r p=0\) has a common root, then the sum of three common roots is
- \(2(p+q+r)\)
- \((p+q+r)\)
- \(-(p+q+r)\)
- \(\text { pqr }\)
Answer
(C) -(p+q+r)
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