If S and T are subsets of real numbers, then which of the following relation holds for union? (A) (S u T) = S U T (B) (Su T° = S° uT° (C) Isolated point of (S T) = Isolated point of S u lsolated point of T (D) Exterior point of (S T) = Exterior point of Su Exterior point of T A B C
which option is correct
Option A and C are correct.
Visit through the following link for option B.
1. https://math.stackexchange.com/questions/287344/about-the-interior-of-the-union-of-two-sets
2. ...