BECE Mathematics 2019 Paper

Elements of N are {1,2,4,6,7,9}. If you count the members you will get 6
Exercises
a) Find M∩N
b) Find M∪N
c) Elements of M
d) How many members are in the set M ?
Answers to exercises
a) M∩N={2,7}
Intersection ( Ω ) is where the two circles join
b) M∪N={1,2,3,4,5,6,7,8,9}
Union (u) you list all the elements (members) in both sets. If a member appear in both sets, its written only once
c) M={2,3,5,7,8}
d) 5