P(2 root 3, 3 root 3) is one extremity of a focal chord on the hyperbola x<sup>2</sup>/3 - y<sup>2</sup>/9 = 1. Find the coords of the other extremity Q. I dont get what it means by extremity?
The extremity means the endpoint. In this question it's giving you one pt of intersection of a focal chord with the hyperbola, and wants you to find the other.