pls answer i have to pass this by tommorow​

Step-by-step explanation:
1.={1,2,3,4,5,6,7,8,10}
2. ={2,8}
3.={1,2,5,6,7,8,9,10,11}
4.= {2,5,7,8,9}
5.= {1,2,3,4,5,6,7,8,10} n {5,7,8,9,11} = {5,7,8}