A pair of tangents are drawn from the origin to the circle `x^2+y^2+20(x+y)+20=0` . Then find its equations.

A pair of tangents are drawn from the origin to the circle x^(2)+y^(2)+20(x+y)+20=0, The equation of pair of tangent is

If tangents are drawn from origin to the circle x^(2)+y^(2)-2x-4y+4=0, then

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

The equation of tangents drawn from the origin to the circle x^(2)+y^(2)-2rx-2hy+h^(2)=0

Length of a tangent drawn from the origin to the circle x ^(2) + y ^(2) - 6x + 4y + 8=0 in units is

Pair of tangents are drawn from origin to the circle x^2 + y^2 – 8x – 4y + 16 = 0 then square of length of chord of contact is

If the pair of tangents are drawn from the point (4,5) to the circle x^(2)+y^(2)-4x-2y-11=0 , then (i) Find the length of chord of contact. (ii) Find the area of the triangle fromed by a pair of tangents and their chord of contact. (iii) Find the angle between the pair of tangents.