Find a unit vector in the direction opposite to `-2/5 hatj`

Find a unit vector in the direction opposite to -(2)/(5)hat(j)

Find a unit vector in the direction opposite to -(3)/(4) hatj

Find a unit vector in the diection of the vector. (i) (3hati + 4hatj - 5hatk) , (ii) (3hati - 2hatj + 6hatk) (iii) (hati + hatk) , (iv) (2hati + hatj + 2hatk)

Find a unit vector in the direction of vector vecb = hati + 2hatj + 3hatk .

Find a unit vector in the direction of vector vecA=(hati-2hatj+hatk)

Find the unit vector in the direction of the vector veca=hati+hatj+2hatk .

Find a unit vector in the direction of the resultant of the vectors hati+2hatj+3hatk,-hati+2hatj+hatk and 3hati+hatj .

Find a unit vector in the direction of vector: vec=3hati-2hatj+6hatk

Find the unit vector in the direction of the vector veca = 2hati+2sqrt2hatj-3hatk.

Find the unit vector in the direction of vector veca=4hati+3hatj+hatk .