The straight line meets the coordinate axes at A and B. A circle is drawn through A,B and the origin.
Then the sum of perpendicular distances from A and B on the tangent to the circle at origing is:
Perpendicular distance of a point from a line -
- wherein
is the distance from the line .
Equation of tangent -
- wherein
Tangent to circle
at
Equation of circle is
Equation of tangent at circle at is
distance of from (1) is
distance of from (1) is
required =
Option 2)
Option 3)
Option 4)
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