Question

What are the elements of (A n B) ' ?

Answer 1

Given

To find:

The elements of (A∩B)'.

Explanation:

It is given that,

Then,

$\begin{gathered} A\cap B=\lbrace1,7\rbrace \\ (A\cap B)^{\prime}=\lbrace1,2,4,5,6,7\rbrace-\lbrace1,7\rbrace \\ (A\cap B)^{\prime}=\lbrace2,4,5,6\rbrace \end{gathered}$

Hence, the elements of (A∩B)' is {2,4,5,6}.