NDA || Mathematics || Coordinate_Geometry || Conic_Sections || Quiz

Find the equation of sphere whose centre is (3,-4,5) and passing through (2,3,-2).

A man running around a racecourse notes that the sum of the distances of two flag-posts from him is always 10 m and the distance between the flag-posts is 8 m. The area of the path he encloses is

Find the radius of the sphere

A variable plane passes through a fixed point  and cuts the axes in  and  respectively. The locus of the centre of the sphere  being the origin, is

The area of ΔABC with vertices A(3,0) , B(7,0) and C(8,4) is: