Khan Academy on a Stick
IIT JEE Circle Hyperbola Common Tangent Part 3
2010 IIT JEE Paper 1 Problem 45 Circle Hyperbola Common Tangent Part 3
If the above player doesn't work, you can try this direct link.
2010 IIT JEE Paper 1 Problem 45 Circle Hyperbola Common Tangent Part 3
If the above player doesn't work, you can try this direct link.