A unit vector parallel to the sum of the vectors 2i + 4j - 5k, i + 2j + 3k are

A unit vector parallel to the sum of the vectors 2 i + 3j -k and 4i + 2j + k is

Find lambda such that the scalar product of the vector vec i + vec j + vec k with the unit vector parallel to the sum of the vectors 2 vec i + 4 vec j - 5 vec k and lambda vec i + 2 vec j + 3 vec k is equal to 1.

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 ?

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)-5 hat(k) and b hat(i)+2hat(j)+3hat(k) is unity ?

The unit vector parallel to the resultant of the vectors A = 4i+3j + 6k and B = -i + 3j-8k is

The unit vector parallel to the resultant of the vectors A = 4i+3j + 6k and B = -i + 3j-8k is

The unit vector perpendicular to each of the vectors 2i - j + k and 3i + 4j - k is

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

The scalar product of the vector i+j+k with a unit vector along the sum of vectors 2i+4j-5k and lambda i+2j+3k is equal to one.Find the value of lambda