If the square of the length of the tangents from a point P to the circles `x^(2)+y^(2)=a^(2), x^(2)+y^(2)=b^(2), x^(2)+y^(2)=c^(2)` are in A.P. then `a^(2),b^(2),c^(2)` are in

If the squares of the lengths of the tangents from a point P to the circles x^(2)+y^(2)=a^(2) , x^(2)+y^(2)=b^(2) , x^(2)+y^(2)=c^(2) are in A.P then a^(2),b^(2),c^(2) are in

if the square of the length of the tangents from point P to the circleS x^(2)+y^(2)=a^(2), x^(2)+y^(2)=b^(2), x^(2)+y^(2)=c^(2) are in A.P. Then a^(2), b^(2), c^(2) are is

If the squares of the lengths of the tangents from a point P to the circles x^2+y^2=a^2 , x^2+y^2=b^2 and x^2+y^2=c^2 are in A.P. then a^2,b^2,c^2 are in

If the squares of the lengths of the tangents from a point P to the circles x^2 +y^2 = a^2, x^2 + y^2=b^2 and x^2 + y^2 = c^2 are in A.P., then a) a,bc,are in AP(b) a,b,c are in GP (c) a^2,b^2,c^2 are in AP (d) a^2,b^2,c^2 are in GP

If the chord of contact of tangents from a point on the circle x^(2) + y^(2) = a^(2) to the circle x^(2)+ y^(2)= b^(2) touches the circle x^(2) + y^(2) = c^(2) , then a, b, c are in-

If the chord of contact of the tangents drawn from a point on the circle x^(2)+y^(2)+y^(2)=a^(2) to the circle x^(2)+y^(2)=b^(2) touches the circle x^(2)+y^(2)=c^(2), then prove that a,b and c are in GP.

The length of the common chord of the circles (x-a)^(2)+(y-b)^(2)=c^(2) and (x-b)^(2)+(y-a)^(2)=c^(2) , is