JEE MATHEMATICS MCQ: ELLIPSE

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Application +4 | -1

Tangent are drawn from any point on the ellipse

\frac{x^2}{a^2}+\frac{y^2}{b^2}=1

to the circle

x^2+y^2=r^2

, then the chord of contact is a tangent to the ellipse, is

View answer and explanation

Correct option: B

a^2 x^2+b^2 y^2=r^4

Option B (

a^2 x^2+b^2 y^2=r^4

) is correct because it represents the condition for the chord of contact to be tangent to another ellipse.

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