Science:Math Exam Resources/Courses/MATH220/December 2009/Question 01 (h)
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Question 01 (h) 

Define the supremum of a set . 
Make sure you understand the problem fully: What is the question asking you to do? Are there specific conditions or constraints that you should take note of? How will you know if your answer is correct from your work only? Can you rephrase the question in your own words in a way that makes sense to you? 
If you are stuck, check the hint below. Consider it for a while. Does it give you a new idea on how to approach the problem? If so, try it! 
Hint 

Supremums are a basic concept in this course. If you're not sure here please review your notes. 
Checking a solution serves two purposes: helping you if, after having used the hint, you still are stuck on the problem; or if you have solved the problem and would like to check your work.

Solution 

Found a typo? Is this solution unclear? Let us know here.
Please rate my easiness! It's quick and helps everyone guide their studies. The supremum of a set A is the smallest real number c such that all elements of A are less than c. 