In Exercises 2528, find the unit vector in the direction
Chapter 6, Problem 6.1.1.35(choose chapter or problem)
In Exercises 25-28, find the unit vector in the direction of the given vector. Write your answer in (a) component form and (b) as a linear combination of the standard unit vectors i and j.
\(\mathbf{u}=\langle 2,1\rangle\)
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