List all the elements of the following sers :
$B = \{ x:x$ is an integer $; - \frac{1}{2} < n < \frac{9}{2}\} $
List all the elements of the following sers :
$B = \{ x:x$ is an integer $; - \frac{1}{2} < n < \frac{9}{2}\} $
$B = \{ x:x$ is an integer, $ - \frac{1}{2} < n < \frac{9}{2}\} $
It can be seen that $-\frac{1}{2}=-0.5$ and $\frac{9}{2}=4.5$
$\therefore B=\{0,1,2,3,4\}$
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