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In this lesson, we will learn how to find the union between two sets or more.

Q1:

Given that { 6 , 7 } βͺ { 1 , 8 } = { 7 , 8 , π₯ , 6 } , what is the value of π₯ ?

Q2:

Use β or β to fill in the gap: If π = { 7 , 2 , 1 , 8 } and π = { 4 , 2 , 1 } , then 2 2 π βͺ π .

Q3:

Given that { 2 , 7 } βͺ { 1 , π₯ , 6 } = { 6 , 2 , 1 , π₯ } , what is the value of π₯ ?

Q4:

Find { 5 } βͺ { 4 5 } .

Q5:

Given that { 9 , 1 4 } βͺ { 5 π₯ , 5 } = { 9 , π₯ , 1 4 , 2 5 } , what is the value of π₯ ?

Q6:

Given that { 2 , π₯ } βͺ { 1 2 , 2 } = { 1 2 , 2 , 1 1 } , what is the value of π₯ ?

Q7:

What is { 4 7 } βͺ { 7 4 } ?

Q8:

Use β or β to fill in the gap: If π = { 6 , 4 , 8 } and π = { 8 , 6 , 4 , 5 } , then 1 π βͺ π .

Q9:

What is { 9 } βͺ { 9 } ?

Q10:

If π = { 5 , 7 , 4 , 3 } and π = { 4 , 6 , 8 , 5 , 3 } , what is π βͺ π ?

Q11:

If π = { 4 , 0 , 1 } , π = { 6 , 7 , 8 } , and π = { 5 , 0 , 3 , 2 } , what is ( π βͺ π ) βͺ π ?

Q12:

Find { 0 , 1 , 6 , 1 0 } βͺ { 3 , 7 , 8 } .

Q13:

What is { 3 , 6 , 9 } βͺ { 6 , 3 9 } ?

Q14:

If π = { 1 , 4 , 3 } , what is π βͺ π ?

Q15:

Given that { 2 1 } βͺ { π₯ } = { 2 1 , 1 5 } , what is the value of π₯ ?

Q16:

Given that { π₯ } βͺ { 1 5 } = { 1 5 , 4 3 } , what is the value of π₯ ?

Q17:

What is β βͺ β ?

Q18:

Find { 6 , 8 , 1 0 } βͺ { 4 , 6 } βͺ { 0 , 1 0 } .

Q19:

Use β or β to fill in the gap: If π = { 1 , 2 , 7 , 5 } and π = { 7 , 4 , 2 , 8 } , then { 5 , 7 } π βͺ π .

Q20:

Find the union set of { 6 , 1 , 3 , 5 } and the set of digits in the number 46β786.

Q21:

Given that π = { 6 , 5 , 7 } and π = { 8 , 5 , 3 , 6 } , find π βͺ β .

Q22:

Given that { 9 , π₯ } βͺ { 3 π₯ , π₯ + 5 } = { 3 , 9 , 8 } , what is the value of π₯ ?

Q23:

Given that { 8 , 1 } βͺ { π₯ , 2 } = { 8 , 2 , 1 } , what is the value of π₯ ?

Q24:

Find { π , π , π§ } βͺ { π , β , π } .

Q25:

Find β βͺ { 0 , 1 , 3 , 4 } .

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