Question

x : radical din2 < 4radical din2

Answer 1

  [tex]x:\sqrt2\ \textless \ 4\sqrt2 \;\; |_{\cdot\sqrt2}\\ \frac{x}{\sqrt\not2}\cdot\sqrt\not2\,\ \textless \ \,4\sqrt2\cdot\sqrt2\\ x\;\ \textless \ \;4\cdot2\;\;\rightarrow\;x\,\ \textless \ \,8\;\;deci\;\;x\,\in\,(-\infty\,;\,8)[/tex]