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JEE MATHEMATICS MCQ: ELLIPSE

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Application +4 | -1
The locus of point of intersection of perpendicular tangents of ellipse (x−1)216+(y−1)29=1\frac{(x-1)^2}{16}+\frac{(y-1)^2}{9}=1 is -
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Correct option: C
x2+y2−2x−2y−23=0x^2+y^2-2 x-2 y-23=0
Option C (x2+y2−2x−2y−23=0x^2+y^2-2 x-2 y-23=0) is correct because the locus of perpendicular tangents of an ellipse is its director circle, which is found by (x−h)2+(y−k)2=a2+b2(x-h)^2 + (y-k)^2 = a^2 + b^2.

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