Question

universal set

Answer 1

What do you mean?

Answer 2

Example of universal set?

Answer 3

The universal set is the set of all elements that are considered in a specific theory. We'll note the universal set with U.

We'll choose as universal set: U = {6,7,8,9,15,16,17,18,20,21}.

We have to determine the sets:

M = {x / x are the multiple of 3}

N = {x / x are the multiple of 5}

The elements of M and N have to be chosen from the universal set U.

To determine M, we'll identify the multiples of 3 from U: {6,9,15,18,21}

M = {6,9,15,18,21}

To determine N, we'll identify the multiples of 5 from U: {15,20}.

N = {15,20}

Answer 4

Google much? ^

Answer 5

yes google

Answer 6

@mr_blue Next time don't do it,It can suspend you from here.

Answer 7

but y it was really a question?

Answer 8

But then you should mention from where you have copied it like a source? :)

Answer 9

ppl asked such question to check others how much know about math