Intervals
Union of intervals
From the Sets section, you definitely know that the result of an intersection is a new set (interval) containing all numbers, which are at least in one set. In two intervals the union will be a new interval, which will contain all numbers, which are at least in one of two intervals.
Otázka
Determine the union of intervals A=(-2,2] and B=[0,4).
Otázka
Determine the union of intervals A=[-1,1], B=(0,2] and C=(3,5].