Lines are drawn from the point P(-1,3) to the circle `x^(2)+y^(2)-2x+4y-8=0` which cuts the circle at 2 points A and B ,then which is not the possible value of PA+PB

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

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:

A chordis drawn from a point P(1,t) to the parabola y^(2)=4x which cuts the parabola at A and B.If PA.PB=3|t|, then find the possible integral value of t.

Tangents drawn from P(1,8) to the circle x^(2)+y^(2)-6x-4y-11=0 touches the circle at the points A and B, respectively.The radius of the circle which passes through the points of intersection of circles x^(2)+y^(2)-2x-6y+6=0 and x^(2)+y^(2)-2x-6y+6=0 the circumcircle of the and interse Delta PAB orthogonally is equal to