Question

If A ={0,1,2} and B ={2,4} then find n{AUB}​

Answer 1

Answer:

$n(A\cup B)$ is 4.

Step-by-step explanation:

Given $A=\{0,1,2\}$ and $B=\{2,4\}$

$A\cup B$ is Contains both elements of $A$ and $B$ without repetition. So,

$A\cup B =\{0,1,2,4\}$

$n(A\cup B)$ represents  the number of elements in the set $A \cup B$.

We have 4 elements in the set $A \cup B$. Thus $n(A\cup B)=4$.

Answer 2

Answer:

4

Step-by-step explanation:

A∪B= {0,1,2}  ∪ {2,4}

        ={0,1,2,4}

A∪B have 4 elements. So, n{A∪B}= 4