Question

The union of sets P = {4, 5, 6, 7, 8, 9, 10} Q = {8, 9, 10, 11, 12} is given by which of the following?



a. {4, 5, 6, 7, 8, 8, 9, 9, 10, 10, 11, 12}

b. {4, 5, 6, 7, 8, 9, 10, 11, 12}

c. ø

d. {8, 9, 10}

Answer 1

set union P U Q which means all numbers in set P or all numbers in set Q. It's all of the numbers (you don't have to write the same number more than once if it's in set P and set Q)

Answer 2

so my answer would be b?

Answer 3

set intersection -> means what does set P and set Q have in common. The numbers 8,9,10 are in set P and set Q so this is set intersection
so for set union yes... b is the answer.

Answer 4

ok i understand! thank u.

Answer 5

:) oh and choice c means empty set... so set P and set Q wouldn't have anything a.k.a no elements

Answer 6

yea i figured. tysm!

Answer 7

yw :D