Question

Q.1
If A = i^-j^+k^ then unit vector in the direction of A-
[1] √3. j^
[2] (i^-j^+k^)
[3](i^-j^-k^)/ √2
[4] (i^-j^+k^) / √3​

Answer 1

Answer:

the magnitude of a vector will be √3

as A vector = A×unit vector of a

show the unit vector in the direction of a will be ICAP - 2 j cap + k cap divided by under root of 3

this gives that 4th is the correct answer

Answer 2

GOOD NIGHT!!

Given Vector is

Ā = i - j + k

It's Magnitude is given by

|A| = √(1² +1² +²)

|A| = √3

Unit vector of A in the direction of Ā is given by

 = Ā/|A|

 = ( i - j + k )/√3

So, option D is correct.