A line meets the coordinate axes in and circle is circumscribed about the triangle The distances from the end points of the side AB to the tangent at are equal to and respectively. Then, the diameter of the circle, is
Let the coordinates of and be and respectively.
Since the triangle is a right angled triangle, the centre of
the circumcircle is the mid point of i.e. and the
radius is equal to
The equation of the circumcircle is
The equation of the tangent at the origin to this circle is
and
Diameter of the circle.
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