Math 11 Chapter 2Sets, Functions and GroupsTest - 3

Math 11 Chapter 2
Sets, Functions and Groups
Test - 3

1. A set having only one element

a) Null set
b) Singleton set.
c) Disjoint set
d) Empty set

2. Set of integers under multiplication is a group.

a) True
b) False

3. Every binary relation on a set A is a function on A.

a) False
b) True

4. The set of rational numbers between 1 and 3 is infinite.

a) False
b) True

5. Φ is considered as ___________.

a) Both (a) and (b).
b) None of a & b.
c) Finite.
d) Infinite.

6. If A and B are disjoint sets then n ( AUB) = ___________.

a) n(A) + n(B)
b) n(A) - n(B).
c) n(A)
d) n(B)

7. The function f : A → B is A into B function when …………….

a) None
b) Ran f = B
c) Ran f ≠ B
d) Ran f = A

8.

a) b
b) c
c) a
d) d

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