Найдите значение выражения \(\left(\dfrac{2 - \frac{1}{2}}{\sqrt{2} + \frac{1}{\sqrt{2}}}\right)^2\).
\[\left(\dfrac{2 - \frac{1}{2}}{\sqrt{2} + \frac{1}{\sqrt{2}}}\right)^2 = \left(\dfrac{1,5}{\sqrt{2}(1 + \frac{1}{2})}\right)^2 = \left(\dfrac{1,5}{\sqrt{2}\cdot 1,5}\right)^2 = \left(\dfrac{1}{\sqrt{2}}\right)^2 = 0,5.\]
Ответ: 0,5