Questions
The product of the perpendiculars from the foci on any tangent to the hyperbola is
detailed solution
Correct option is B
Equation of a tangent at (8sec θ, 3tan θ) the hyperbola is x8sec θ−y3tan θ=1If e is the eccentricity of the hyperbola; product of the perpendiculars=(esecθ−1)(−esecθ−1)sec2θ64+tan2θ9=1−e2sec2θ×(64×9)9sec2θ+64tan2θ=1−64−964sec2θ(64×9)9sec2θ+64tan2θ=64tan2θ+9sec2θ9sec2θ+64tan2θ×9=9.Talk to our academic expert!
Similar Questions
Statement-1: The locus of the point of intersection of the tangents that are at right angles to the hyperbola
Statement-2: Perpendicular tangents to the hyperbola interest on the director circle of the hyperbola.
799 666 8865
support@infinitylearn.com
6th Floor, NCC Building, Durgamma Cheruvu Road, Vittal Rao Nagar, HITEC City, Hyderabad, Telangana 500081.
JEE Mock Tests
JEE study guide
JEE Revision Notes
JEE Important Questions
JEE Sample Papers
JEE Previous Year's Papers
NEET previous year’s papers
NEET important questions
NEET sample papers
NEET revision notes
NEET study guide
NEET mock tests