Question

Let vector a =5icap +3jcap +4Kcap and b vector=6 icap - 8 jcap . Projection of vector a on vector b is:

(1) 1/5
(2) 2/5
(3) 3/5
(4) 4/5​

Answer 1

Answer:

(2) 2/5 plz tell the correct answer