Find radius of curvature at `(a,0)` for `xy^2 = a^3 - x^3`

Find radius of curvature of common surface

Two soap bubbles of radii 2 cm and 3 cm are brought in contact. Find the radius of curvature (in cm) of the contact surface.

Find the centre and radius of the circle 3x^2 + 3y^2 - 8x - 10y + 3=0

Find the co-ordinates of the centre and radius of the circle 3x^(2) + 3y^(2) + 6x + 4y - 3 = 0

Find the centre and the radius of the circles 3x^(2) + 3y^(2) - 8x - 10y + 3 = 0

The radius of the circle which has normals xy-2x-y+2=0 and a tangent 3x+4y-6=0 is

Find the centre and radius of the circle 3x^(2) 3y^(2) - 6x +9y - 8 =0 .

Radius of curvature of a equi convex lens is R. Find focal length ( n = 3/2 )