Sets!

The following symbol represents

• Union

• Intersection

• Complement

• Subset

Which of the following is NOT a set

• Smart students attending SPHS

• Prime numbers that are even

• All the prime ministers in Belize

• Pigs that can fly

The shaded part of this image shows the ______

• Intersection

• Union

• Complement

• Subset

The members of Set B are

• {2, 5, 19}

• {8, 10, 13, 17}

• {2, 5, 9, 15, 19}

• {8, 9, 10, 13, 15, 17}

Sets may or may not be well defined

• True. Sets must be well defined

• False. Sets may not be well defined

Let U= {1,2,3,...,10}
A= {1,3,5,7}, 
B= {1,2,3,4}, and 
C= {3,4,6,7,9}.

Select A $c$   from the choices below

• {1,4,5,6,7,10}

• {4,6,7,8,9,10}

• {1,3,4,8,9,10}

• {2,4,6,8,9,10}

Consider the sets:

A = {red, green, blue}

B = {red, yellow, orange}

C = {red, orange, yellow, green, blue, purple}

Find A ⋃ B

(a)  

U is the set of whole numbers from 1 to 15.

A is the set of multiples of 3.

B is the set of primes.

Find A ∩ B

(a)  

U is the set of whole numbers from 1 to 15.

A is the set of multiples of 3.

B is the set of primes.

Find A ∪ B

(a)  

Was there anything that you did not understand from our lesson this week?