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1. Discrete Mathematics
This section
Practice test
11 questions on this section. Wrong answers show you what to read again.
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Revision test
Mixed questions from across the chapter. Your answers get marked.
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Flashcard drill
5 cards from this lesson. Good the night before a test.
Try these first
- 1.
What is a set?
Hint
Consider how you would describe a group of numbers.
- 2.
What defines a proof by contradiction?
Hint
Think of proving someone wrong by showing an impossible outcome.
- 3.
What type of reasoning focuses on deriving conclusions from premises?
- Geometrical
- Mathematical
- Statistical
Hint
Think about the different types of reasoning practices.
- 4.
True or False: A relation is a collection of ordered pairs.
- True
- False
Hint
Consider how relations help to create connections.
- 5.
Design a graph representing the relationships in a social network, detailing vertices and edges.
Hint
Think about who interacts with whom in your social circle.
- 6.
Prove that the sum of two odd numbers is even using a proof by contradiction.
Hint
Examine the definition of odd numbers closely.
Exercises
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
4 more questions available
Enrol freeQuiz
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting
1 more question available
Enrol freeChallenge Problems
Total Questions
2
Estimated Time
4 min
Passing Score
70%
Instructions
- Read each question carefully
- You can use hints if you need help
- Complete all questions before submitting