Find the Unit Vector Having the Same Direction as V $$\mathbf { v } = - 3 \mathbf { i } + 4 \mathbf { j }$$

Multiple Choice

Find the unit vector having the same direction as v.
- $$\mathbf { v } = - 3 \mathbf { i } + 4 \mathbf { j }$$

A) $\mathbf { u } = - \frac { 5 } { 3 } \mathrm { i } + \frac { 5 } { 4 } \mathrm { j }$
B) $\mathbf { u } = - \frac { 4 } { 5 } \mathrm { i } + \frac { 3 } { 5 } \mathrm { j }$
C) $u = - \frac { 3 } { 5 } i + \frac { 4 } { 5 } j$
D) $\mathbf { u } = - 15 \mathrm { i } + 20 \mathrm { j }$