In this question we prove that certain sets are not convex

Last updated: 5/20/2023

In this question we prove that certain sets are not convex For each of the following sets give the coordinates of two points where P and Q are in the set but the line from P to Q goes outside the set For example if the points are 1 2 and 3 4 enter in the format 1 2 3 4 a R x y x y 1 y 0 3 1 2 2 1 2 3 1 2 2 1 2 b S x y x 2 y 5 U x y x 3 y 10 0 1 0 1 x y x 3 n x y y 5