Consider the function \( f(x)=x+\frac{1}{x}, x \in \mathbf{R}, x \n... VIDEO
Consider the function \( f(x)=x+\frac{1}{x}, x \in \mathbf{R}, x \neq 0 \). Is \( f \) one-one?
Hint. Check that \( f(2)=f\left(\frac{1}{2}\right) \).
\( \mathrm{P} \)
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