For any two subsets X and Y of a set A, define X o Y = (Xc ∩Y) ∪ (X ∩YC). Then for any three subsets X, Y, Z of the set A is
X o ( Y o Z ) = ( X o Y ) o Z
A. | True |
B. | False |
C. | |
D. | |
Option: A Explanation : Click on Discuss to view users comments. |
If relation R is defined on N by R = ((a, b): a divides b; a, b ∈N). Then R is
A. | relexive |
B. | symmetric |
C. | transitive |
D. | none of these |
Option: C Explanation : Click on Discuss to view users comments. |
Relation R is defined on the set N as f(a,b): a, b are both odd), is
A. | relexive |
B. | symmetric |
C. | transitive |
D. | none of these |
Option: D Explanation : Click on Discuss to view users comments. |