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It is a well-defined collection or group of objects.
Set
One way of writing set where elements are listed separately by comma and enclosed in a pair or brackets { }.
Roster Form
The number of the elements in a set.
Cardinality of set
Two sets that contain exactly the same number of elements
Equivalent Sets
Has no element. In symbol { } or O
Empty Set or Null Set
Is the set of elements that are members of A, or members of B, or members of both A and B.
Union of Sets
Is the set of all elements common to both sets A and B.
Intersection of Sets
Is a set of elements in A that are not in B or B – A, is the elements in B that are not in A.
Difference of Two Sets
Given Set A = {2,4,5,7,8,9} and Set B = {2,3,5,6,8,9}, what is A ∩ B?
{2,5,8,9}
Given Set D = {1,2,4,5,6,7,8,9,10} and Set R = {7,8,9,10,11}, what is R - D?
{11}
Given Set M = {10,20,30,40,50,60} and Set N = {5,15,25,35,45,55,65}, what is M U N?
{5,10,15,20,25,30,35,40,45,50,55,60,65}
Find the cardinality of the letters in the word "MISSISSIPPI"
4
Given B = {2,6,15,17,21} and C = {3,7,8,9,12}, what is B ∩ C?
{ } or null set
Given Set F = {h,e,l,o}, Set H = {l,o,v,e} and Set I = {g,u,d,b,y,e}, what is F U H U I?
{h,e,l,o,v,g,u,d,b,y}
Given Set A = {a,s,i,n}, Set B = {l,u,y,a} and Set C ={g,a,r,l,i,c}, what is A ∩ B ∩ C?
{a}
If Set X = {January, February, March}, Set Y = {April, May, June} and Set Z = {July, August, September} then (X U Y) ∩ Z is _____.
{ } or null set.
