" 11."arctan2hat i-3hat j+4hat kquad -4hat i+6hat j-8hat k

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.

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

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

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

If vectors vec A=2 hat i+3 hat j+4 hat k , vec B= hat i+ hat j+5 hat k and vec C form a left-handed system, then vec C is a. 11 hat i-6 hat j- hat k b. -11 hat i+6 hat j+ hat k c. 11 hat i-6 hat j+ hat k d. -11 hat i+6 hat j- hat k

Show that the four points with position vectors 4hat i+8hat j+12hat k,2hat i+4hat j+6hat k,quad 3hat i+5hat j+4hat k and 5hat i+8hat j+5hat k are coplanar.

Find the area of the parallelogram determined by the vectors: 2hat i and 3hat j2hat i+hat j+3hat k and hat i-hat j3hat i+hat j-2hat k and hat i-3hat j+4hat khat i-3hat j+hat k and hat i+hat j+hat k

Prove that the points hat i-hat j,4hat i-3hat j+hat k and 2hat i-4hat j+5hat k are the vertices of a right angled triangle.

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