A circle with radius and centre on -axis slides along it and a variable lines through cuts the circle at points and . The region in which the point of intersection of tangents to the circle at point and lies is represented by |
|||||||
a) |
b) |
c) |
d) |
A circle with radius and centre on -axis slides along it and a variable lines through cuts the circle at points and . The region in which the point of intersection of tangents to the circle at point and lies is represented by |
|||||||
a) |
b) |
c) |
d) |
(a)
Let the centre be equation of circle
Equation of chord of contact for is
It passes through
As is real