Magnitude of vector which comes on addition of two vectors, `6hati+7hatj` and `3hati+4hatj` is

What is the magnitude of a vector obtained by addition of two vectors, 6hati+7hatj and 3 hati+4hatj ?

Find a unit vector which is perpendicular to both the vectors 2hati + hatj - hatk and 3hati + 4hatj - hatk .

Find the magnitudes of the sum and difference of two vectors 6hati-4hatj+2hatk and 6hati+hatj+2hatk .

Find a vector of magnitude 7 , which is perpendicular to both the vectors : 2hati-hatj+hatk and hati+hatj-hatk

Find a vector of magnitude 6 which is perpendicular to both the vectors 2 hati - hatj + 2hatk and 4 hati - hatj + 3hatk.

A vector of magnitude 4 which is equally inclined to the vectors hati +hatj,hatj +hatk and hatk +hati , is

A vector of magnitude 4 which is equally inclined to the vectors hati +hatj,hatj +hatk and hatk +hati , is

Calculate the components of a vector of magnitude unity which is at right angles to the vectors 2hati+hatj-4hatk and 3hati+hatj-hatk .