Show that the vectors `2 hat i-3 hat j+4 hat k`and `-4 hat i+6 hat j-8 hat k`are collinear.

Show that the vectors 2hat i-3hat j+4hat k and -4hat i+6hat j-8hat k are collinear.

Show that the vectors quad 2hat i-3hat j+4hat k and -4hat i+6hat j-8hat k are collinear.

(a) Find the condition that the vectors vec(a)=k hat(i)+l hat(j) and vec(b)=l hat(i)+k hat(j)(k, l ne 0) are parallel. (b) Show that the vectors 2hat(i)-3hat(j)+4hat(k) and -4hat(i)+6hat(j)-8hat(k) are collinear.

Find a vector of mangitude 18 which is perpendicular to both the vector 4 hat i - hat j + 3 hat k and -2 hat i + hat j -2 hat k .

If the vectors 3 hat i +3 hat j +9 hat k and hat i +a hat j +3 hat k are parallel, then a =

Show that the points whose position vectors are 5 hat i+5 hat k ,\ 2 hat i+ hat j+3 hat k\ a n d-4 hat i+3 hat j- hat k are collinear.

If the vectors 2 hat(i) - q hat(j) + 3 hat(k) and 4 hat(i) - 5 hat(j) + 6 hat(k) are collinear then find the value of q.

For what value of 'a' the vectors : 2hat(i)-3hat(j)+4hat(k) and a hat(i)+6hat(j)-8hat(k) are collinear ?

The value of 'a' when the vectors : 2hat(i)-3hat(j)+4hat(k) and ahat(i)+b hat(j)-8 hat(k) are collinear is __________.

Dine the unit vector peroendicular to each of the vectors 3 hat i+ hat j 2 hat k and 2 hat i- 2 hat j = 4 hat k .