The chord of contact of tangents from three points P, Q, R to the circle `x^(2) + y^(2) = c^(2)` are concurrent, then P, Q, R

The chord of contact of tangents from 3 points A, B, C to the circle x^(2) + y^(2) =4 are concurrent, then the points A, B and C are:

The chords of contact of tangents from three points A, BandC to the circle x^(2)+y^(2)=a^(2) are concurrent.Then A,BandC will (a)be concyclic (b) be collinear (c)form the vertices of a triangle (d)none of these

The chords of contact of tangents from three points A ,Ba n dC to the circle x^2+y^2=a^2 are concurrent. Then A ,B a n dC will be

The chords of contact of tangents from three points A ,Ba n dC to the circle x^2+y^2=a^2 are concurrent. Then A ,B and C will (a)be concyclic (b) be collinear (c)form the vertices of a triangle (d)none of these

The chords of contact of tangents from three points A ,Ba n dC to the circle x^2+y^2=a^2 are concurrent. Then A ,B and C will (a)be concyclic (b) be collinear (c)form the vertices of a triangle (d)none of these

The chords of contact of tangents from three points A ,Ba n dC to the circle x^2+y^2=a^2 are concurrent. Then A ,Ba n dC will (a)be concyclic (b) be collinear (c)form the vertices of a triangle (d)none of these

If the chord of contact of the tangents from the point (alpha, beta) to the circle x^(2)+y^(2)=r_(1)^(2) is a tangent to the circle (x-a)^(2)+(y-b)^(2)=r_(2)^(2) , then

If the chord of contact of the tangents from the point (alpha, beta) to the circle x^(2)+y^(2)=r_(1)^(2) is a tangent to the circle (x-a)^(2)+(y-b)^(2)=r_(2)^(2) , then