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Yes, they can be very useful mathematical sets.

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Q: Intersection and union of sets of real numbers?
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Related questions

What is the union of the sets of rational and irrational numbers?

The real numbers.


Do the intersection of two sets always contains a smaller number of terms than the union of two sets?

No, because the intersection of two equivalent sets will have a union the same size as its intersection.


Can some numbers be rational and irrational?

No. The intersection of the two sets is null. Irrational numbers are defined as real numbers that are NOT rational.


Is there any case when union and intersection are same in sets?

if we have set A and B consider A={1,2,3,4}and B={3,4,5,6} the union of these sets is A and B={1,2,3,4,5,6}and the intersection is{3,4} the union and the intersection are same only if A=B


What numbers are The union of the rational and irrational numbers?

The real numbers.


What is the union intersection set?

Given two or more sets there is a set which is their union and a set which is there intersection. But, there is no such thing as a "union intersection set", as required for the answer to the question.


What are the different sets operations?

Union, Intersection and Complement.


What are operations of sets?

union of sets,intersection of sets,difference of sets,ordered pair,ordered n-touples,cartician product of setThe basic operations are union and intersection. The complement of the set is also a basic operation.


What is a union of sets of numbers?

The union is all the numbers in all the sets.


Difference between Union and Set Intersection Operation?

union means to group the given sets. where as intersection means to pick out the common elements from the given sets. if set a has 1,2,3 elements and B has 1,2,3,4,5. then its union will have 1,2,3,4,5 as its elements. and its intersection will have 1,2,3 as its elements.


BASIC OPERATION ON sets in college algebra?

The basic operations on sets are union, intersection, complement.


What are the basic operations for sets in math?

The basic operations are union and intersection.