Ask your own question, for FREE!
Mathematics 17 Online
OpenStudy (anonymous):

Specify the boundary and the interior of the plane set S whose points (x,y) satisfy: x>=0, y<0. Is S open, closed or neither? This has no boundary, infinite interior thus it's neither open nor closed?

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!