$\"\"$

The vector is $\"\"$ .

Let v is unite vector of u.

$\"\"$ (Write unit vector form in the direction of u)

$\"\"$ (Substitute $\"\"$ )

$\"\"$ (simplify)

$\"\"$ (simplify) $\"\"$

The magnitude of vector v is $\"\"$ .

$\"\"$ (Apply magnitude formula: $\"\"$ )

$\"\"$ (Substitute $\"\"$ )

$\"\"$ (Simplify) $\"\"$

The unit vector is $\"\"$ .