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JEE Mains · Maths · STD 11 - 4.2 Quadratic equations and inequations

माना \(p , q \in R\) यदि \(2-\sqrt{3}\) द्विघाती समीकरण \(x ^{2}+ px + q =0\) की एक मूल है, तो :

  1. A \(q^2 + 4p + 14 = 0\)
  2. B \(p^2 -4q -12 = 0\)
  3. C \(p^2 -4q + 12 = 0\)
  4. D \(q^2 -4p -16 = 0\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(p^2 -4q -12 = 0\)

Step-by-step Solution

Detailed explanation

In given question \(p, q \in R\). If we take other root as any real number \(\alpha,\) then quadratic equation will be \(x^{2}-(\alpha+2-\sqrt{3}) x+\alpha(2-\sqrt{3})=0\) Now, we can have none or any of the options can be correct depending upon \('\alpha '.\) Instead of…
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