If the angle between vec(A) = 2hat(i)+4hat(j)+2hat(k) and vec(B) =2hat(i) +hat(k) " is " 30^(@), then find the projection of vec(B ) onA .

If the angle between vec(A) = 2hat(i)+4hat(j)+2hat(k) and vec(B) =2hat

1.	If the angle between vec(A) = 2hat(i)+4hat(j)+2hat(k) and vec(B) =2hat(i) +hat(k) " is " 30^(@), then find the projection of vec(B ) onA .
Answer» SOLUTION :`3 (SQRT(2))/2 " UNIT"`