1.

An ellipse is rotated through a right angle in its own plane about its centre, which is fixed. If at a point tangents are drawn before and after rotation then locus of point of intersection of such tangents is

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An ellipse is rotated through a right angle in its own plane about its centre, which is fixed. If at a point tangents are drawn before and after rotation then locus of point of intersection of such tangents is



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