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Quadratic Equation and Inequalities question

2011 · Shift 2 · Q23

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JEE Advanced
Mathematics
Quadratic Equation and Inequalities
2011 · Shift 2 · Q23

Quadratic Equation and Inequalities question

2011 · Shift 2 · Q23

JEE AdvancedMathematicsQuadratic Equation and InequalitiesMCQ+4 / −1

A value of

b

for which the equations

\begin{matrix} {{x^2} + bx - 1 = 0} \\ {{x^2} + x + b = 0} \\ \end{matrix}

have one root in common is

A
$- \sqrt 2$
B
$- i\sqrt 3$
C
$i\sqrt 5$
D
$\sqrt 2$

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