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

\(x\) के उन सभी वास्तविक मानों का योग जो समीकरण \(\left(x^{2}-5 x+5\right)^{x^{2}+4 x-60}=1\) को संतुष्ट करते हैं, है:

  1. A \(6\)
  2. B \(5\)
  3. C \(3\)
  4. D \(-4\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(3\)

Step-by-step Solution

Detailed explanation

\(x^{2}-5 x+5=1\) \(\Rightarrow x=1,4\) \(x^{2}-5 x+5=-1\) \(\Rightarrow x=2,3\) but \(3\) is rejected \(x^{2}+4 x-60=0\) \(\Rightarrow x=-10,6\) \(\operatorname{sum}=3\)
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