Suppose A is a subset of S. Then the complement of subset A in S consists of all elements of S that are not in A.
The intersection of two sets A and B consists of all elements that are in A as well as in B.
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-28 belongs to: Integers, which is a subset of rationals, which is a subset of reals, which is a subset of complex numbers.
No, they do not.
Some would say that there is no intersection. However, if the set of irrational numbers is considered as a group then closure requires rationals to be a proper subset of the irrationals.
Imaginary numbers are not a subset of the real numbers; imaginary means not real.
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.