AB is a chord of the circle `x^2 +y^2=9`. The tangents at A and B intersect at C. If `M(1, 2)` is the midpoint of AB, then the area of triangle ABC is

AB is a chord of the circle x^(2)+y^(2)=25. The tangents of A and B intersect at C. If (2,3) is the mid-point of AB,then area of the quadrilateral OACB is

AB is a chord of the circle x^(2)+y^(2)-2x+4y-20=0. If the tangents at A and B are inclined at 120^(@), then AB is

Let (a, b) is the midpoint of the chord AB of the circle x^2 + y^2 = r^2. The tangents at A and B meet at C, then the area of triangle ABC

AB is a chord of the parabola y^(2)=4ax such that the normals at A and B intersect at the point C(9a, 6a). If the area of triangle ABC is 320m^(2) , then a is _________

AB is a chord of y^(2)=4x such that normals at A and B intersect at C(9,6)

(a,b) is the midpoint of the chord AB of the circle x^(2)+y^(2)=r^(2) . The tangents at A,B meet at C, then the area of triangleABC=

AB is a chord of y^2=4x such that normals at A and B intersect at C(9,6) and the tengent at A and B at point T, find (CT)^2//13

AB is any chord of the circle x^2+y^2-6x-8y-11=0 which subtends an angle pi/2 at (1,2) . If locus of midpoint of AB is a circle x^2+y^2-2ax-2by-c=0 ; then find the value of (a+b+c) .