Question

If A = {2, 5} and B = {1, 2, 3, 4, 5}, find A u B.O {1, 3, 4}O {1, 2, 3, 4, 5}O {}O {2, 5}

Answer 1

`\mleft\lbrace1,2,3,4,5\mright\rbrace`

Step-by-step explanation

We want to find the union of the two sets given:

`\begin{gathered} A=\mleft\lbrace2,5\mright\rbrace \\ B=\mleft\lbrace1,2,3,4,5\mright\rbrace \end{gathered}`

The union of the two sets is the combined set of all numbers that are in the two sets.

Therefore, we have that:

`A\cup B=\mleft\lbrace1,2,3,4,5\mright\rbrace`

That is the answer.