[tex] \frac{1}{ \sqrt{2} } [/tex] + 1 + 2 - [tex] \sqrt{2} [/tex] =
(amplifici fractia cu √2)
[tex] \frac{ \sqrt{2} }{2} [/tex] + 3 - √2 =
(amplifici 3 si √2 cu 2)
[tex] \frac{ \sqrt{2} + 6 - 2 \sqrt{2} }{2} [/tex] =
[tex] \frac{6 - \sqrt{2} }{2} [/tex]
