Question: Is the following statement true or false? For every odd integer n , | ~ n 2 ~ | = n + 1 2 .
Is the following statement true or false?
For every odd integer ~~
To answer this question, let be any odd integer. By definition of odd, for some integer and so by substitution, ~~~~ Starting with this equality, express ~~ in terms of as simply as possible without using the ceiling notation. The result is
~~~~
Also, when is expressed in terms of and is completely simplified, the result is
Since the expression in for ~~ is as the expression in for the given statement is
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