Find a vector in the direction of 
which has magnitude 21 units.
First, we find the unit vector in the direction of a given vector,
Now vector in the direction of the given vector and with magnitude 21 is
1
Find a vector in the direction of which has magnitude 21 units.
First, we find the unit vector in the direction of a given vector,
Now vector in the direction of the given vector and with magnitude 21 is