A value of b for which the equations array l x^ 2 +b x-1=0 x^ 2 +x+b=0 array have one…
Mathematics · JEE Main · NTA Exams — Complex Numbers and Quadratic Equations
A value of b for which the equations
\(\begin{array}{l} x^{2}+b x-1=0 \\ x^{2}+x+b=0 \end{array}\)
have one root in common is
- - \(\sqrt{2}\)
- \(-\mathrm{i} \sqrt{3}\)
- \(i \sqrt{5}\)
- \(\sqrt{2}\)
Answer
(D) 2
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