Question

i need some questions and answers for the chapter sets as a part of my project work

Answer 1

1. If A= { 3x/x € N , x <_( less than or equal to) 50}, B = {5x/x €N, x <_( less than or equal to 30} then n(A intersection(n) B) =? Ans: 10. 2. A- (A n(intersection) B ) = ? Ans : (A-A) U (A-B). 3. If F(x) denotes set of divosors of 'x' except 1, then F(18) - F(12) = ? Ans : {9,18}. 4. If A= { set if all isosceles triangles} and B = { set of all equilateral triangles} , then A n ( intersection) B = ? Ans: A. 5. If B and C ate disjoint sets, then A U( B n (intersection) C) = ? Ans : A.