A unit vector in 
-plane makes an angle of 
with the vector 
and an angle of 
with the vector 
is
a)
b)
c)
d)
None of these
A unit vector in -plane makes an angle of with the vector and an angle of with the vector is
a)
b)
c)
d)
None of these
Question ID - 53314 | SaraNextGen Top Answer
A unit vector in -plane makes an angle of with the vector and an angle of with the vector is
a)
b)
c)
d)
None of these
|
A unit vector in |
|||||||
|
a) |
|
b) |
|
c) |
|
d) |
None of these |
1 Answer
127 votes
Answer Key / Explanation : (d) -
(d)
Let the required unit vector be 
Then, 
…(i)
Since, 
makes an angle of 
with 
and an angle of 
with3
therefore
127 votes
Answer Link
127