Question

Please solve as soon as possible

Answer 1

7. {x:x=1/n, n =1,2,3,4,5,6}

8.maximum no. of elements are

n(A)+n(B) =7+5=12

9.answer 6+4-8=2

10. a

11.1,2,3

12.6,7

Plz mark me brainlist if it us helpful