A. 3

B. -9

C. -3

D. 5

If the length of the tangent from (2, 3) to circle x^{2}+y^{2}+6x+2ky-6=0 is equal to 7. Then k=

Let A and B be any two points on each of the circles x^{2}+y^{2}-8x-8y+28=0 and x^{2}+y^{2}-2x-3=0 respectively. If d is the distance between A and B then the set of all possible values of d is

The length and the midpoint of the chord 2x+y-5=0 w.r.t the circle x^{2}+y^{2}=9 is

For the circle x^{2}+y^{2}-2x-4y-4=0 the lines 2x+3y-1=0, 2x+y+5=0 are

If a tangent drawn from the point (4, 0) to the circle x^{2}+y^{2}=8 touches it at a point in the first quadrant, then the coordinates of another point B on the circle such that AB=4 are