Tangents AB and AC are drawn to the circle `x^2 +y^2-2x + 4y +1=0` from `A(0.1)` then equation of circle passing through `A,B and C` is

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

If the tangents AB and AQ are drawn from the point A(3, -1) to the circle x^(2)+y^(2)-3x+2y-7=0 and C is the centre of circle, then the area of quadrilateral APCQ is :

Tangents are drawn from (4, 4) to the circle x^(2) + y^(2) – 2x – 2y – 7 = 0 to meet the circle at A and B. The length of the chord AB is

Tangents drawn from the point P(1,8) to the circle x^(2) + y^(2) - 6x - 4y -11=0 touch the circle at the points A and B. The equation of the circumcircle of the triangle PAB is:

Find the equation of the pair of tangents drawn to the circle x^(2)+y^(2)-2x+4y+3=0 from (6,-5) .

Tangents drawn from the point (4, 3) to the circle x^(2)+y^(2)-2x-4y=0 are inclined at an angle