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In this lesson, we will learn how to use the properties of the empty set to solve problems including operations on sets.

Q1:

What is π β π ?

Q2:

Find { 5 6 } β© { 6 5 } .

Q3:

Which of the following choices is NOT an empty set?

Q4:

Is the set of the months of the year null or not?

Q5:

Find { 3 , 0 } β { 0 , 3 } .

Q6:

What is π β π ?

Q7:

What is β β π ?

Q8:

What is π β β ?

Q9:

Find β β { 5 , 2 , 3 , 0 , 8 } .

Q10:

Use = , β , β or β to fill in the gap:

Q11:

Given { 9 , 2 } β { π₯ , 9 } = β , find the value of π₯ .

Q12:

Given that π = { 3 , 6 } , find π β© β .

Q13:

Given that π΄ is a subset of the universal set π , what is π΄ β© π΄ ?

Q14:

Given that π = { 1 , 3 , 4 , 5 } , find π β© β .

Q15:

Which of the following choices is an empty set?

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