Question

Answer the following with solutions

Answer 1

A and C are correct Mark as Brainliest

Answer 2

Here is your answer .
I think first question is which one is correct .
So, option (a) and (c) are correct .
As
Y U {1,2} = {1,2,3,5,9}
Here, Y could be { 3,5,9} or { 1,2,3,5,9} as smallest and largest set.

For the next question,
A = {1,2,3} , B= {3,4} and C = ???

Question is incomplete ....