[" Q.2"quad 0.4hat i+0.8hat j+chat k" represents a unit vector "],[" when "c" is "]

0.4 hat(i)+0.8 hat(j) + c hat(k) represents a unit vector when c is :

0.4 hat(i)+0.8 hat(j) + c hat(k) represents a unit vector when c is :

If vec a= hat i+ hat j- hat k ,\ vec b=- hat i+2 hat j+2 hat k\ a n d\ vec c=- hat i+2 hat j- hat k , then a unit vector normal to the vectors a+b\ a n d\ b-c is

If vec A=7hat i+2hat j-3hat k and vec B=hat i+hat j+2chat k are perpendicular vectors,the value of c is

If bar a=hat i+hat j-4hat k and bar(b)=hat 4i-hat j-2hat k then find (i) a unit vector in the direction of the vector (2bar(a)-bar(b))

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

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 vec a - vecb+ 3 vec c

If vec a=hat i+2 hat j+hat k and vec b=2 hat i+hat j and vec c=3 hat i-4 hat j-5 hat k , then find a unit vector perpendicular to both of the vectors vec a-vec b and vec c-vec b .

The sides of a parallelogram represent the vectors 2 hat i- 4 hat j+ 5 hat k and hat i- 2 hat j-3 hat k . Find the unit vectors parallel to its diagonals.

If vec A=7hat i+2hat j-2hat k and vec B=2hat i+hat j+2Chat k are perpendicular vectors, the value of C is