The pair of tangents from (2,1) to the circle `x^2 + y^2 = 4` is

The range of values of a such that the angle theta between the pair of tangents drawn from (a,0) to the circle x^(2)+y^(2)=1 satisfies *pi/2

The range of values of a such that the angle theta betweeen the pair of tangents drawn from (a,0) to the circle x^(2)+y^(2)=1 lies in ((pi)/(3),pi) is

The product of the slopes of the tangents from (3,4) to the circle x^(2)+y^(2)=4 is A/B ,then A-B =

The pair of tangents from origin to the circle x^(2)+y^(2)+4x+2y+3=0 is

If L_1 and L_2, are the length of the tangent from (0, 5) to the circles x^2 + y^2 + 2x-4=0 and x^2 + y^2-y + 1 = 0 then

The point of contact of a tangent from the point (1, 2) to the circle x^2 + y^2 = 1 has the coordinates :

If the length of the tangent from (f,g) to the circle x^(2)+y^(2)=6 is twice the length of the tangent from the same point to the circle x^(2)+y^(2)+3x+3y=0 , then