Evaluate set operations and find solutions.
1) (0,2]∪(1,4)
2) R＼(0,2]
3) (0,2]＼(1,4)
4) (0,2]∩(1,4)


Answer
1)(0,4)
2)(-∞,0)∪(2,∞)
3)(0,1]
4)(1,2]


I know the meaning of ∪, ∩, R, ＼
Can you teach me procedures to solve these problems?