Find the projection of the vector 
on the vector 
Let 
and 
Projection of 
is given by 
Now 
∴ Projection of 
= 0
∴ Projection of 
is 0.
4
Find the projection of the vector on the vector
Let and
Projection of is given by
Now
∴ Projection of
= 0
∴ Projection of is 0.