If e1 is The Eccentricity Of The Ellipse  and e2 is The Eccentricity Of The Hyperbola  and e1e2 = 1, Then B2 is Equal To  

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If e1 is the eccentricity of the ellipse  and eis the eccentricity of the hyperbola  and e1e2 = 1, then b2 is equal to



Correct option is








If R is the point of intersection of the tangents to H at the extremities  of the chord L, then equation of the chord contact of with respect to the parabola P is


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