Simplified circle's locus!
A point 'P' moves such that tangents drawn from it through the circle \(x^2+y^2=r^2\). always remain perpendicular to each other. Another point 'Q' moves between locus of point 'P' and given circle such that it covers maximum area and always remain equidistant from a fixed point 'R'. Find locus of point 'R' ?