To the circle `x^2 + y^2 = 4` two tangents are drawn from `P (-4, 0)`, which touch the circle at `T_1`, and `T_2` and a rhombus `PT_1P'T_2` is completed. Circumcentre of the triangle `PT_1T_2` is at

To the circle x^(2)+y^(2)=4 , two tangents are drawn from P(-4,0) , which touch the circle at T_(1) and T_(2) . A rhomus PT_(1)P'T_(2) s completed. If P is taken to be at (h,0) such that P' lies on the circle, the area of the rhombus is

To the circle x^(2)+y^(2)=4 , two tangents are drawn from P(-4,0) , which touch the circle at T_(1) and T_(2) . A rhomus PT_(1)P'T_(2) s completed. If P is taken to be at (h,0) such that P' lies on the circle, the area of the rhombus is

To the circle x^(2)+y^(2)=4 , two tangents are drawn from P(-4,0) , which touch the circle at T_(1) and T_(2) . A rhomus PT_(1)P'T_(2) s completed. If P is taken to be at (h,0) such that P' lies on the circle, the area of the rhombus is

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

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: