Exercise

Operations on sets

Putting the information on sets in more mathematical terms, we can define the following operations given two sets $X$ and $Y$:

$X\cap Y$ - the intersection between $X$ and $Y$ (all elements which are in both $X$ and $Y$)

$X\cup Y$ - the union between $X$ and $Y$ (all elements which are either in $X$ or $Y$)

$X - Y$ - the difference between $X$ and $Y$ (all elements which are in $X$ but not in $Y$)

You are given 5 sets of integers A, B, C, D,E. What is the result of the following expression? $$ \left( A \cup \left( B \cap C \right)\right) - \left(D \cap E\right) $$

Instructions

50 XP

Possible Answers

{2}
{}
{1, 2}
{1, 2, 3, 4, 5, 6, 7}