CircleHard
Question
The length of the normal (terminated by the major axis) at a point of the ellipse 
= 1 is -
= 1 is -Options
A.b/a (r + r1)
B.b/a |r - r1|
C.b/a 
D.independent of r, r1
More Circle Questions
The equation of the common tangent touching the circle (x -3)2 + y2 = 9 and the parabola y2 = 4x above the x-axis is...If the tangent at (1, 7) to the curve x2 = y - 6 touches the circle x2 + y2 + 16x + 12y + c = 0 then the value of c is :...The centres of the circles x2 + y2 _ 6x _ 8y _ 7 = 0 and x2 + y2 _ 4x _ 10y _ 3 = 0 are the ends of the diameter of the ...Tangents drawn from the point P(1, 8) to the circle x2 + y2 - 6x - 4y - 11 = 0 touch the circle at the points A and B. T...The radius of the circle passing through the points (1, 2), (5, 2) & (5, - 2) is:...