Calculate u+v\mathbf{u} + \mathbf{v}u+v where u=(−1,−1)\mathbf{u} = (-1, -1)u=(−1,−1) and v=(1,1)\mathbf{v} = (1, 1)v=(1,1).
(0, 0)
(2, 2)
(-2, -2)
(1, 1)