Question

If  are three vectors such that  then

Solution

Correct option is

 

We have,   

          

  

  

  

Taking cross product of (i) with , we get   

SIMILAR QUESTIONS

Q1

The number of vectors of unit length perpendicular to the vectors  

Q2

A unit vector making an obtuse angle with x-axis and perpendicular to the plane containing the points  also makes an obtuse angle with

Q3

 is a unit vector such that 

Q4

 then a unit vector normal to the vectors  

Q5

A unit vector perpendicular to both 

Q6

If  are the position vectors of the vertices ABC of a triangleABC, then the area of triangle ABC is  

Q7

If , then the length of the perpendicular from A to the line BC is 

Q8

The perpendicular distance of the point  from the line joining 

Q9

If the diagonals of a parallelogram are represented by the vectors , then its area in square units is

Q10

Let  be unit vectors such that . Which one of the following is correct?