Question: If $ \mathbfa, \mathbfb, \mathbfc $ are unit vectors in $ \mathbbR^3 $ with $ \mathbfa \cdot \mathbfb = \mathbfb \cdot \mathbfc = \mathbfc \cdot \mathbfa = \frac12 $, find the maximum value of $ \|\mathbfa + \mathbfb + \mathbfc\| $, modeling directional consistency in linguistic feature spaces. - Portal da Acústica