Question

two vectors A and b are given as 2i+3j-k and i-2k+3j respectively then unit vector of a +b is given by

Answer 1

a+b=3i+6j-3k
unit vectot of a+b=a+b÷|a+b|
|a+b|=3√6
unit vector=1/√6i+2/√6j-1/√6k

Answer 2

Answer:

⇒ a+b=3i+6j-3k

⇒ unit vectot of a+b=a+b÷|a+b|

⇒ |a+b|=3√6

⇒ unit vector=1/√6i+2/√6j-1/√6k