 # Find the limits. lim_{xrightarrow3sqrt2}(frac{x}{2}-frac{1}{x}) Tyra 2021-02-11 Answered
Find the limits. $\underset{x\to 3\sqrt{2}}{lim}\left(\frac{x}{2}-\frac{1}{x}\right)$
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We have the given expression of limit as
$f\left(x\right)=\underset{x\to 3\sqrt{2}}{lim}\left(\frac{x}{2}-\frac{1}{x}\right)$
Put the value of x in the above expression we get:
$f\left(x\right)=\frac{3\sqrt{2}}{2}-\frac{1}{3\sqrt{2}}=\frac{3}{\sqrt{2}}-\frac{1}{3\sqrt{2}}$
on simplification of above step we get:
$f\left(x\right)=\frac{9-1}{3\sqrt{2}}=\frac{8}{3\sqrt{2}}=\frac{4\sqrt{2}}{3}$
$f\left(x\right)=\frac{4\sqrt{2}}{3}$
We get a fixed value as constant. Therefore, limit exist at the given point.
Hence,the value of limit $f\left(x\right)=\underset{x\to 3\sqrt{2}}{lim}\left(\frac{x}{2}-\frac{1}{x}\right)$ is $\left(4\sqrt{\frac{2}{3}}\right)$