Hi,

I am having some problems with SET related questions ... but I am trying ... Maybe someone can help me with this one:

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The sets A and B are “disjoint” if:

A∩B= ∅

Given:

V= {x∈ ℤ|1 ≤x≤ 14}

A= {x∈V|xis a multiple of 2}

B= {x∈V|xis a multiple of 3}

C= {x∈V|xis a multiple of 5}

D= ∅

Indicate if the following sets are disjoint or not.

A and B

B and C

A and C

C and D

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I know that this is very important to determine the answers:

V= {x∈ ℤ|1 ≤x≤ 14}

- x consists of integers (ℤ)

- 1 is equal or less then x and x is equal or less then 14

I I am correct D is a set with empty elements and we conclude that "C and D" is a Disjoint right?

Thanks,