[" If the two diagonals of one of its faces are "6bar(i)+6hat k" are "4hat j+2hat k" and of the edges not coptaining the "],[" given diagonals is "bar(c)=4hat j-8hat k," then the volume of a parallelopiped is "]

If the two diagonals of one its faces are 6hat i+6hat k and 4hat j+2hat k and of the edges not containing the given diagonals is c=4hat j-8hat k then the volume of a parallepiped is 60b.80 c.100d.120

If the two diagonals of one its faces are 6 hat i+6 hat ka n d4 hat j+2 hat k and of the edges not containing the given diagonals is c=4 hat j-8 hat k , then the volume of a parallelepiped is a. 60 b. 80 c. 100 d. 120

If the two diagonals of one its faces are 6 hat i+6 hat ka n d4 hat j+2 hat k and of the edges not containing the given diagonals is c=4 hat j-8 hat k , then the volume of a parallelepiped is a. 60 b. 80 c. 100 d. 120

If the two diagonals of one its faces are 6 hat i+6 hat ka n d4 hat j+2 hat k and of the edges not containing the given diagonals is c=4 hat j-8 hat k , then the volume of a parallelepiped is a. 60 b. 80 c. 100 d. 120

The sides of a parallelogram are 2hat(i)+4hat(j)-5hat(k) " and " hat(i)+2hat(j)+3hat(k) . Then the unit vector parallel to one of the diagonals 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))