Find the Vectors $\mathbf { u } + \mathbf { v }$

Essay

Find the vectors $\mathbf { u } + \mathbf { v }$ , $\mathbf { u } - \mathbf { v }$ , and $3 \mathbf { u } - \frac { 1 } { 2 } \mathbf { v }$ . $\mathbf { u } = 2 \mathbf { i } + \mathbf { j } , \mathbf { v } = - 2 \mathbf { j } - \mathbf { k }$