Question

If A= {1,2,4,5,7,9} and B= {2,34} and U = {1,2,3,4,5,6,7,8,9} Find A intersection B

Answer 1

Given the sets in the question tab, the following are the solution steps to get the intersection of A and B

Step 1: Write the given sets

`\begin{gathered} A=\mleft\lbrace1,2,4,5,7,9\mright\rbrace \\ B=\mleft\lbrace2,3,4\mright\rbrace \\ U=\mleft\lbrace1,2,3,4,5,6,7,8,9\mright\rbrace \end{gathered}`

Step 2: Find A intersection B

The intersection of two or more given sets is the set of elements that are common to each of the given sets. The intersection of sets is denoted by the symbol '∩'.

Hence, A intersection B will be:

`A\cap B=\mleft\lbrace2,4\mright\rbrace`