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yash797
30.07.2019 •
Mathematics
Set operations including cardinality of power sets and listing the elements of a power set and finding the number of subsets of a given size. let u = {-1, 0, 1, 2, 3, 4, 6} , a = {-1, 1, 2, 3, 4} and b = {0, 2, 4, 6}. find a.a u b, b.a ∩ b, c.b – a, d.the power set of b and its cardinality
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Ответ:
a
a
={-1,0,1,2,3,4,6}
b. a
a
a
={2,4}
c. b-a
b-a is the set of members present in b but not in a.
{0, 2, 4, 6}-{-1, 1, 2, 3, 4}
={0,6}
d. Power set of b, its cardinality
Power set is the set of all possible combinations of elements.
There are 2^n members in the power set of x where n is the number of elements in the set x.
For example, power set of S={1,2} is {
The cardinality of S above is the number of elements in the set, therefore 2^2=4.
For b={0,2,4,6}
The power set is
{
for a total of 2^4=16 members in the power set.
Therefore the cardinality of the power set is 16.
Ответ:
fc
Step-by-step explanation:
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