Question

The locus of the pole of the chords of the standard circle which subtended a right angle at (h,k) is

Answer 1

Director Circle is the locus of poles of the chords of the standard circle which subtended a right angle at any (h,k).
If equation of given circle is $(x-a{)}^2+(y-b{)}^2=r^2$, then equation of its director circle which has been asked will be
$(x-a{)}^2+(y-b{)}^2=r^2$