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AP EAMCET · Maths · Quadratic Equation

If \(\alpha\) and \(\beta\) are two distinct negative roots of \(x^5-5 x^3+5 x^2-1=0\), then the equation of least degree with integer coefficients having \(\sqrt{-\alpha}\) and \(\sqrt{-\beta}\) as its roots is

  1. A \(x^2-3 x+1=0\)
  2. B \(-x^4+5 x^2-5 x+1=0\)
  3. C \(-x^4-5 x^2+5 x+1=0\)
  4. D \(x^4-3 x^2+1=0\)
Verified Solution

Answer & Solution

Correct Answer

(D) \(x^4-3 x^2+1=0\)

Step-by-step Solution

Detailed explanation

\(x^5-5 x^3+5 x^2-1=0\) By inspection \(x=1\) is a root…