Find the direction cosines of the vector
The given vector is a → = i ^ + 2 j ^ + 3 j ^ .
Magnitude of vector a → is,
| a → | = 1 2 + 2 2 + 3 2 = 14
Direction cosines of a → are ( x | a → | , y | a → | , z | a → | ) .
Here, x = 1 , y = 2 and z = 3 .
Substitute all values for direction cosines, we get,
( 1 14 , 2 14 , 3 14 )
Thus, direction cosines of a → are ( 1 14 , 2 14 , 3 14 ) .
The given vector is
Magnitude of vector
Direction cosines of
Here,
Substitute all values for direction cosines, we get,
Thus, direction cosines of
