Let `D = {(x,y) inR^2 : x^2 + y^2 le 1}.` then the maximum number of point in D such that the distance between any pair of point is at least 1 will be

Let the diameter of a subset S of the plane be defined as the maximum of the distance between arbitrary pairs of points of S. Q. Let S={(x,y):(y-x) le 0, x+y ge 0, x^(2)+y^(2) le 2} then the diameter of S is :

Let the diameter of a subset S of the plane be defined as the maximum of the distance between arbitrary pairs of points of S. Q. Let S={(x,y):(y-x) le 0, x+y ge 0, x^(2)+y^(2) le 2} then the diameter of S is :

Find the maximum distance of any point on the curve x^2+2y^2+2x y=1 from the origin.

Find the maximum distance of any point on the curve x^2+2y^2+2x y=1 from the origin.

Find the maximum distance of any point on the curve x^2+2y^2+2x y=1 from the origin.

The curve x y=c ,(c >0), and the circle x^2+y^2=1 touch at two points. Then the distance between the point of contacts is 1 (b) 2 (c) 2sqrt(2) (d) none of these

If x+y le 2, x ge 0, y le 0 the point at which maximum value of 3x+2y attained will be

if x+y le 2,x ge 0 then point at which maximum value of 3x + 2y attained will be

If the maximum distance of any point on the ellipse x^2+2y^2+2x y=1 from its center is r , then r is equal to