\|\mathbfa + \mathbfb + \mathbfc\|^2 = \|\mathbfa\|^2 + \|\mathbfb\|^2 + \|\mathbfc\|^2 + 2(\mathbfa \cdot \mathbfb + \mathbfb \cdot \mathbfc + \mathbfc \cdot \mathbfa) - Appfinity Technologies