Fuente TeX:

\frac{w_2}{\|w_2\|}=\frac{3}{\sqrt{6}}\left(-\frac{2}{3},\frac{1}{3},\frac{1}{3}\right)=\left(-\frac{2}{\sqrt{6}},\frac{1}{\sqrt{6}},\frac{1}{\sqrt{6}}\right)=\left(-\frac{2}{\sqrt{3}\sqrt{2}},\frac{1}{\sqrt{6}},\frac{1}{\sqrt{6}}\right)\left(-\frac{\sqrt{2}}{\sqrt{3}},\frac{1}{\sqrt{6}},\frac{1}{\sqrt{6}}\right)