Solns-Homework4.pdf - MATH 3333 Solutions Homework Assignment#4 1 Determine whether the given set is open closed or neither open nor closed(a S =(1 2[3
Solns-Homework4.pdf - MATH 3333 Solutions Homework...
MATH 3333Solutions: Homework Assignment #41. Determine whether the given set is open, closed, or neither open nor closed.(a)S= (-1,2)∪[3,∞) Neither(b)S= (-∞,1)∪(2,∞) Open: every point of(d)S=braceleftbigg0,12,23,34,· · ·,n-1n,· · ·bracerightbigg∪[1,4]