Discrete Maths - Sets
137. If I A I = m and I B I = n, then number of possible relations R : A → B is
- Option : D
- Explanation :
You must be logged in to post a comment.
You must be logged in to post a comment.
138. Which of the following relations are functions?
I. N = {(x, y)/y = x², x ∈ {-1, 0, 1, 2, 3}}
II. P = {(x, y)/y² = x, x ∈ {4, 9, 16})
III. Q = {(x, y)/y = 4x² -14, x ∈ {-1, 1, 2, 3}}
- Option : C
- Explanation :
You must be logged in to post a comment.
You must be logged in to post a comment.
- Option : C
- Explanation :
You must be logged in to post a comment.
You must be logged in to post a comment.
140. If sets A and B have 3 and 6 elements each, then minimum number of elements in A ∪ B is
- Option : B
- Explanation :
You must be logged in to post a comment.
You must be logged in to post a comment.
You must be logged in to post a comment.