Find the Unit Vector in the Direction of the Given $\mathbf { u } = \langle 1,5 \rangle$

Multiple Choice

Find the unit vector in the direction of the given vector. Write your answer in the indicated form.
-Let $\mathbf { u } = \langle 1,5 \rangle$ . Find the unit vector in the direction of $\mathbf { u }$ , and write your answer as a linear combination of the standard unit vectors $\mathbf { i }$ and $\mathbf { j }$ .

A) $\frac { 1 } { \sqrt { 26 } } \mathrm { i } + \frac { 5 } { \sqrt { 26 } } \mathrm { j }$
B) $\mathrm { i } + \mathrm { j }$
C) $\frac { 1 } { 6 } \mathrm { i } + \frac { 5 } { 6 } \mathrm { j }$
D) $\frac { 1 } { 26 } \mathbf { i } + \frac { 5 } { 26 } \mathrm { j }$