Math 11 Chapter 2Sets, Functions and GroupsTest - 2

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

1. A statement which is always false is called converse.

a) True
b) False

2. A U Φ =………………………….

a) u
b) Φ
c) None
d) A

3. The identity of a group is always unique.

a) False
b) True

4. If f is a function from A to B and Range (f)¹ B then f is called ________ function.

a) Into
b) 1-1
c) Onto
d) Bijective

5. The set { 1,-1,i, -i} is an abelian group under addition.

a) True
b) False

6. For two sets A&B

a) A- B¹ B + A
b) B¹ B+A
c) B¹ B - A
d) A- B¹ B - A

7. (AUB)/ = ………………………………….

a) A/∩B/
b) A∩B/
c) A/ UB
d) A/ UB/

8. The set of odd integers between 2 and 4 is not a singleton set.

a) True
b) False

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