Let be unit vectors such that . Which one of the following is correct?
Let be a unit vector perpendicular to unit vectors and if the angle between is α, then is
If the vectors are such that form a right handed system, then is
If the area of a parallelogram whose diagonals coincide with the following pair of vectors is , then vectors are
Let A vector satisfying
Vectors are inclined at an angle θ = 60o.
Let be unit vector such that If the angle between
If the force represented by is acting through the point , then its moment about the point (1, 3, 1) is
The moment of the couple formed by the force acting at the points (9, –1, 2) and (3, –2, 1) respectively, is