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JEE MATHEMATICS MCQ: ELLIPSE

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Application +4 | -1
The locus of the point of intersection of the perpendicular tangents to the ellipse x29+y24=1\frac{x^2}{9}+\frac{y^2}{4}=1 is
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Correct option: C
x2+y2=13x^2+y^2=13
Option C (x2+y2=13x^2+y^2=13) is correct because the locus of the point of intersection of perpendicular tangents to an ellipse is the director circle, given by x2+y2=a2+b2x^2 + y^2 = a^2 + b^2.

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