CircleHard
Question
Find the co-ordinates of a point p on line x + y = _ 13, nearest to the circle x2 + y2 + 4x + 6y _ 5 = 0
Options
A. (_ 6, _ 7)
B. (_ 15, 2)
C. (_ 5, _ 6)
D. (_ 7, _ 6)
Solution
Point on the line x + y + 13 = 0 nearest to the circle x2 + y2 + 4x + 6y _ 5 = 0 is foot of ^ from centre
=
= _
= _4
x = _6 y = _7