Set, Relation and FunctionHard
Question
If for three disjoint sets A, B, C; n(A) = 10, n(B) = 6 and n(C) = 5, then n(A ∪ B ∪ C) is equal to -
Options
A.21
B.11
C.1
D.9
More Set, Relation and Function Questions
Let A = {1, 2, 3, 4}, and let R = {(2, 2), (3, 3), (4, 4), (1, 2)} be a relation on A. Then R is-...The void relation on a set A is -...Let S be a non empty subset of N. Negation of the statement ″There exists a number x∈S such that x is even&#...Let f: (-1, 1) → R be a differentiable function with f(0) = - 1 and f′(0) = 1. Let g(x) = [f(2f(x) + 2)]2. T...Let X = {1, 2, 3, 4, 5} and Y = {1, 3, 5, 7, 9}. Which of the following is/are relations from X to Y -...