To ask a new question, put a line and type your question. You can use LaTeX to type math. Here is a link to a short LaTeX tutorial.
To answer a question, open the page for editing and start typing below the question...
go back to the Discussion Page
Problem 18 (A problem with problem 18). By checking the inequality for $ n=1 $
one finds that $ = $ holds rather then $ \le $.
In fact, the
inequality holds for $ n=2 $. In your assignment, you can either use $ \leq $ or prove that the $ \le $ holds for $ n\ge 2 $.
