" If "a=3i-2j+k,b=-i+j+k" then the unit vector parallel to the vector "a+b" is "

The unit vectors parallel to i-3j-5k is

If a = 3i - 2j + k and b = i + 2j + 5k, then the unit vector along a - b is

If a = i + j - 2k, b = -i + 2j + k, c = i - 2j + 2k, then a unit vector parallel to a + b + c =

If a=i+j-k,b=i-j+k and c is a unit vector perpendicular to the vector a and coplanar with a and b,then aunit vector d perpendicular to both a and c is

If vec a = hat i + hat j + hat k , vec b = 2 hat i - hat j + 3 hat k and vec c = hat i - 2 hat j + hat k , find a unit vector parallel to the vector 2 veca - vec b + 3 vec c

What is the value of b such that the scalar product of the vector hat(i) + hat(j) + hat(k) with the unit vector parallel to the sum of the vectors 2hat(i) + 4hat(j)-5hat(k) and b hat(i) + 2hat(j) + 3hat(k) is unity ?

If vec a = i+j-2k, vec b = -i+2j+k and vec c = i-2j+2k then a unit vector parallel to vec a + vec b + vec c is

If vec(a)=4hat(i)-hat(j)+hat(k) and vec(b)=2hat(i)-2hat(j)+hat(k) , then find a unit vector parallel to the vector vec(a)+vec(b) .