If tangent at (1, 2) to the circle `C_1: x^2+y^2= 5` intersects the circle `C_2: x^2 + y^2 = 9` at A and B and tangents at A and B to the second circle meet at point C, then the co- ordinates of C are given by

If tangent at (1,2) to the circle x^(2)+y^(2)=5 intersect the circle x^(2)+y^(2)=9 at A and B and tangents at A and B meets at C. Find the coordinate of C

A line y=2x+c intersects the circle x^(2)+y^(2)-2x-4y+1=0 at P and Q. If the tangents at P and Q to the circle intersect at a right angle,then |c| is equal to

If y=2x+c is tangent to the circle x^(2)+y^(2)=16 find c.

If y=4x+c is a tangent to the circle x^(2)+y^(2)=9 , find c.

Let circle C_1 : x^2 + (y-4)^2 = 12 intersects circle C_2: (x-3)^2 +y^2=13 at A and B. A quadrilateral ACBD is formed by tangents at A and B to both circles. The diameter of circumcircle of quadrilateral ACBD is

Let circle C_1 : x^2 + (y-4)^2 = 12 intersects circle C_2: (x-3)^2 +y^2=13 at A and B. A quadrilateral ACBD is formed by tangents at A and B to both circles. The diameter of circumcircle of quadrilateral ACBD is

A tangent at a point on the circle x^2+y^2=a^2 intersects a concentric circle C at two points Pa n dQ . The tangents to the circle X at Pa n dQ meet at a point on the circle x^2+y^2=b^2dot Then the equation of the circle is (a) x^2+y^2=a b (b) x^2+y^2=(a-b)^2 (c) x^2+y^2=(a+b)^2 (d) x^2+y^2=a^2+b^2

A tangent at a point on the circle x^2+y^2=a^2 intersects a concentric circle C at two points Pa n dQ . The tangents to the circle X at Pa n dQ meet at a point on the circle x^2+y^2=b^2dot Then the equation of the circle is

A tangent at a point on the circle x^2+y^2=a^2 intersects a concentric circle C at two points Pa n dQ . The tangents to the circle X at Pa n dQ meet at a point on the circle x^2+y^2=b^2dot Then the equation of the circle is x^2+y^2=a b x^2+y^2=(a-b)^2 x^2+y^2=(a+b)^2 x^2+y^2=a^2+b^2

A tangent at a point on the circle x^(2)+y^(2)=a^(2) intersects a concentric circle C at two points P and Q. The tangents to the circle X at P and Q meet at a point on the circle x^(2)+y^(2)=b^(2). Then the equation of the circle is x^(2)+y^(2)=abx^(2)+y^(2)=(a-b)^(2)x^(2)+y^(2)=(a+b)^(2)x^(2)+y^(2)=a^(2)+b^(2)