Question

If A={2,3,5,7,11} and B={1,3,5,7,9}, then find A-B and n(B-A)
Please explain step by step ​

Answer 1

Answer:

what is A-B can u pls telll

Answer 2

Answer:

(A - B)= {2,3,5,7,11} - {1,3,5,7,9}

= {2,1,11,9}

(B - A)= {1,3,5,7,9} - {2,3,5,7,11}

= {1,2,9,11}