AP EAMCET · Maths · Quadratic Equation
The condition that \(x^3-p x^2+q x-r=0\) may have two of its roots equal to each other but of opposite sign is
- A r = pq
- B \(r=2 p^3+p q\)
- C \(r=p^2 q\)
- D \(r=p^2 q^2\)
Answer & Solution
Correct Answer
(A) r = pq
Step-by-step Solution
Detailed explanation
Given equation, \(x^3-p x^2+q x-r=0 ...(i)\ldots\) Let \(\alpha, \beta\) and \(\gamma\) are the roots of Eq. (i) Hence,…
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