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# If A is the set of even numbers between 1 and 20, and B is the set of prime numbers between 1 and 20.

If A is the set of even numbers between 1 and 20, and B is the set of prime numbers between 1 and 20.
(A.) (I) List all the elements of A

(II) List all the elements of B

## (B.) Find the following:

I. A∩B
II. A∪B
III. Ac∪Bc
IV. Ac∩Bc
V. A∩Bc

If A is the set of even numbers between 1 and 20, and B is the set of prime numbers between 1 and 20.

## (A.) (I) List all the elements of A

If A is the set of even numbers between 1 and 20
A = 2, 4, 6, 8, 10, 12, 14, 16 and 18

## (II) List all the elements of B

B = 2, 3, 5, 7, 11, 13, 17, 19

## (B.) Find the following:

A∩B= A intersect B
A∩B = ( the intercept) is 2

A∪B = A union B
A∪B = (2, 3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 14, 16, 17, 18, 19)

Ac∪B = A prime union B
Ac∪B = ( 3, 5, 7, 11, 13, 17, 19)

Ac∩Bc = A prime intersect B prime
Ac∩Bc = ( 9, 15)

A∩Bc = A intersect B prime
A∩Bc = ( 4, 6, 8, 10, 12, 14, 16, 18)

### Oluwamuyide Peter

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